Home / 15,472.62-21,352.23-8,399.03

Finding the Fourth Proportional to 15,472.62, 21,352.23 and 8,399.03

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Solution

The fourth proportional to 15,472.62, 21,352.23 and 8,399.03 is: 11,590.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,472.62 : 21,352.23 = 8,399.03 : x
  2. Step 2: Convert to fraction form
    15,472.62/21,352.23 = 8,399.03/x
  3. Step 3: Cross multiply
    15,472.62x = 21,352.23 × 8,399.03
  4. Step 4: Simplify right side
    15,472.62x = 179,337,913.58
  5. Step 5: Solve for x
    x = 179,337,913.58/15,472.62
  6. Step 6: Final answer
    x = 11,590.66

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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.