Home / 10,887.78-16,331.61-3,962.28

Finding the Fourth Proportional to 10,887.78, 16,331.61 and 3,962.28

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Solution

The fourth proportional to 10,887.78, 16,331.61 and 3,962.28 is: 5,943.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.78 : 16,331.61 = 3,962.28 : x
  2. Step 2: Convert to fraction form
    10,887.78/16,331.61 = 3,962.28/x
  3. Step 3: Cross multiply
    10,887.78x = 16,331.61 × 3,962.28
  4. Step 4: Simplify right side
    10,887.78x = 64,710,411.67
  5. Step 5: Solve for x
    x = 64,710,411.67/10,887.78
  6. Step 6: Final answer
    x = 5,943.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.