Home / 15,411.03-21,267.38-8,337.61

Finding the Fourth Proportional to 15,411.03, 21,267.38 and 8,337.61

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Solution

The fourth proportional to 15,411.03, 21,267.38 and 8,337.61 is: 11,505.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.03 : 21,267.38 = 8,337.61 : x
  2. Step 2: Convert to fraction form
    15,411.03/21,267.38 = 8,337.61/x
  3. Step 3: Cross multiply
    15,411.03x = 21,267.38 × 8,337.61
  4. Step 4: Simplify right side
    15,411.03x = 177,318,992.98
  5. Step 5: Solve for x
    x = 177,318,992.98/15,411.03
  6. Step 6: Final answer
    x = 11,505.98

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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.