Home / 14,142.14-19,515.61-7,854.92

Finding the Fourth Proportional to 14,142.14, 19,515.61 and 7,854.92

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Solution

The fourth proportional to 14,142.14, 19,515.61 and 7,854.92 is: 10,839.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.14 : 19,515.61 = 7,854.92 : x
  2. Step 2: Convert to fraction form
    14,142.14/19,515.61 = 7,854.92/x
  3. Step 3: Cross multiply
    14,142.14x = 19,515.61 × 7,854.92
  4. Step 4: Simplify right side
    14,142.14x = 153,293,540.73
  5. Step 5: Solve for x
    x = 153,293,540.73/14,142.14
  6. Step 6: Final answer
    x = 10,839.49

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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.