Home / 9,878.11-13,632.17-5,401.62

Finding the Fourth Proportional to 9,878.11, 13,632.17 and 5,401.62

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Solution

The fourth proportional to 9,878.11, 13,632.17 and 5,401.62 is: 7,454.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,878.11 : 13,632.17 = 5,401.62 : x
  2. Step 2: Convert to fraction form
    9,878.11/13,632.17 = 5,401.62/x
  3. Step 3: Cross multiply
    9,878.11x = 13,632.17 × 5,401.62
  4. Step 4: Simplify right side
    9,878.11x = 73,635,775.11
  5. Step 5: Solve for x
    x = 73,635,775.11/9,878.11
  6. Step 6: Final answer
    x = 7,454.44

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Half scale
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Double scale
Find fourth proportional to 9,879.11, 13,633.55 and 5,402.62
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.