Home / 14,007.80-21,011.60-5,687.73

Finding the Fourth Proportional to 14,007.80, 21,011.60 and 5,687.73

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Solution

The fourth proportional to 14,007.80, 21,011.60 and 5,687.73 is: 8,531.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,007.80 : 21,011.60 = 5,687.73 : x
  2. Step 2: Convert to fraction form
    14,007.80/21,011.60 = 5,687.73/x
  3. Step 3: Cross multiply
    14,007.80x = 21,011.60 × 5,687.73
  4. Step 4: Simplify right side
    14,007.80x = 119,508,279.23
  5. Step 5: Solve for x
    x = 119,508,279.23/14,007.80
  6. Step 6: Final answer
    x = 8,531.56

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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.