Home / 19,542.13-29,314.54-9,678.76

Finding the Fourth Proportional to 19,542.13, 29,314.54 and 9,678.76

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Solution

The fourth proportional to 19,542.13, 29,314.54 and 9,678.76 is: 14,518.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,542.13 : 29,314.54 = 9,678.76 : x
  2. Step 2: Convert to fraction form
    19,542.13/29,314.54 = 9,678.76/x
  3. Step 3: Cross multiply
    19,542.13x = 29,314.54 × 9,678.76
  4. Step 4: Simplify right side
    19,542.13x = 283,728,397.17
  5. Step 5: Solve for x
    x = 283,728,397.17/19,542.13
  6. Step 6: Final answer
    x = 14,518.81

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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.