Home / 14,139.36-19,517.76-9,421.92

Finding the Fourth Proportional to 14,139.36, 19,517.76 and 9,421.92

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Solution

The fourth proportional to 14,139.36, 19,517.76 and 9,421.92 is: 13,005.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.36 : 19,517.76 = 9,421.92 : x
  2. Step 2: Convert to fraction form
    14,139.36/19,517.76 = 9,421.92/x
  3. Step 3: Cross multiply
    14,139.36x = 19,517.76 × 9,421.92
  4. Step 4: Simplify right side
    14,139.36x = 183,894,773.30
  5. Step 5: Solve for x
    x = 183,894,773.30/14,139.36
  6. Step 6: Final answer
    x = 13,005.88

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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.