Home / 16,851.38-23,259.15-9,781.90

Finding the Fourth Proportional to 16,851.38, 23,259.15 and 9,781.90

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Solution

The fourth proportional to 16,851.38, 23,259.15 and 9,781.90 is: 13,501.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,851.38 : 23,259.15 = 9,781.90 : x
  2. Step 2: Convert to fraction form
    16,851.38/23,259.15 = 9,781.90/x
  3. Step 3: Cross multiply
    16,851.38x = 23,259.15 × 9,781.90
  4. Step 4: Simplify right side
    16,851.38x = 227,518,621.24
  5. Step 5: Solve for x
    x = 227,518,621.24/16,851.38
  6. Step 6: Final answer
    x = 13,501.49

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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.