Home / 15,451.78-23,139.88-13,954.18

Finding the Fourth Proportional to 15,451.78, 23,139.88 and 13,954.18

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Solution

The fourth proportional to 15,451.78, 23,139.88 and 13,954.18 is: 20,897.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.78 : 23,139.88 = 13,954.18 : x
  2. Step 2: Convert to fraction form
    15,451.78/23,139.88 = 13,954.18/x
  3. Step 3: Cross multiply
    15,451.78x = 23,139.88 × 13,954.18
  4. Step 4: Simplify right side
    15,451.78x = 322,898,066.43
  5. Step 5: Solve for x
    x = 322,898,066.43/15,451.78
  6. Step 6: Final answer
    x = 20,897.14

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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.