Home / 15,472.62-21,352.41-8,399.16

Finding the Fourth Proportional to 15,472.62, 21,352.41 and 8,399.16

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Solution

The fourth proportional to 15,472.62, 21,352.41 and 8,399.16 is: 11,590.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.62 : 21,352.41 = 8,399.16 : x
  2. Step 2: Convert to fraction form
    15,472.62/21,352.41 = 8,399.16/x
  3. Step 3: Cross multiply
    15,472.62x = 21,352.41 × 8,399.16
  4. Step 4: Simplify right side
    15,472.62x = 179,342,307.98
  5. Step 5: Solve for x
    x = 179,342,307.98/15,472.62
  6. Step 6: Final answer
    x = 11,590.95

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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.