Home / 16,140.87-22,273.38-9,428.40

Finding the Fourth Proportional to 16,140.87, 22,273.38 and 9,428.40

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Solution

The fourth proportional to 16,140.87, 22,273.38 and 9,428.40 is: 13,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,140.87 : 22,273.38 = 9,428.40 : x
  2. Step 2: Convert to fraction form
    16,140.87/22,273.38 = 9,428.40/x
  3. Step 3: Cross multiply
    16,140.87x = 22,273.38 × 9,428.40
  4. Step 4: Simplify right side
    16,140.87x = 210,002,335.99
  5. Step 5: Solve for x
    x = 210,002,335.99/16,140.87
  6. Step 6: Final answer
    x = 13,010.60

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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.