Home / 11,118.08-15,340.68-6,401.12

Finding the Fourth Proportional to 11,118.08, 15,340.68 and 6,401.12

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Solution

The fourth proportional to 11,118.08, 15,340.68 and 6,401.12 is: 8,832.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.08 : 15,340.68 = 6,401.12 : x
  2. Step 2: Convert to fraction form
    11,118.08/15,340.68 = 6,401.12/x
  3. Step 3: Cross multiply
    11,118.08x = 15,340.68 × 6,401.12
  4. Step 4: Simplify right side
    11,118.08x = 98,197,533.56
  5. Step 5: Solve for x
    x = 98,197,533.56/11,118.08
  6. Step 6: Final answer
    x = 8,832.24

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Half scale
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Double scale
Find fourth proportional to 11,119.08, 15,342.06 and 6,402.12
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.