Home / 11,115.54-15,340.59-6,401.34

Finding the Fourth Proportional to 11,115.54, 15,340.59 and 6,401.34

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Solution

The fourth proportional to 11,115.54, 15,340.59 and 6,401.34 is: 8,834.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.54 : 15,340.59 = 6,401.34 : x
  2. Step 2: Convert to fraction form
    11,115.54/15,340.59 = 6,401.34/x
  3. Step 3: Cross multiply
    11,115.54x = 15,340.59 × 6,401.34
  4. Step 4: Simplify right side
    11,115.54x = 98,200,332.39
  5. Step 5: Solve for x
    x = 98,200,332.39/11,115.54
  6. Step 6: Final answer
    x = 8,834.51

Related Problems

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Half scale
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Double scale
Find fourth proportional to 11,116.54, 15,341.97 and 6,402.34
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.