Home / 14,346.40-21,490.17-8,488.75

Finding the Fourth Proportional to 14,346.40, 21,490.17 and 8,488.75

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Solution

The fourth proportional to 14,346.40, 21,490.17 and 8,488.75 is: 12,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.40 : 21,490.17 = 8,488.75 : x
  2. Step 2: Convert to fraction form
    14,346.40/21,490.17 = 8,488.75/x
  3. Step 3: Cross multiply
    14,346.40x = 21,490.17 × 8,488.75
  4. Step 4: Simplify right side
    14,346.40x = 182,424,680.59
  5. Step 5: Solve for x
    x = 182,424,680.59/14,346.40
  6. Step 6: Final answer
    x = 12,715.71

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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.