Home / 14,434.80-21,672.11-9,981.42

Finding the Fourth Proportional to 14,434.80, 21,672.11 and 9,981.42

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Solution

The fourth proportional to 14,434.80, 21,672.11 and 9,981.42 is: 14,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,434.80 : 21,672.11 = 9,981.42 : x
  2. Step 2: Convert to fraction form
    14,434.80/21,672.11 = 9,981.42/x
  3. Step 3: Cross multiply
    14,434.80x = 21,672.11 × 9,981.42
  4. Step 4: Simplify right side
    14,434.80x = 216,318,382.29
  5. Step 5: Solve for x
    x = 216,318,382.29/14,434.80
  6. Step 6: Final answer
    x = 14,985.89

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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.