Home / 15,333.83-21,158.80-8,874.58

Finding the Fourth Proportional to 15,333.83, 21,158.80 and 8,874.58

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Solution

The fourth proportional to 15,333.83, 21,158.80 and 8,874.58 is: 12,245.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.83 : 21,158.80 = 8,874.58 : x
  2. Step 2: Convert to fraction form
    15,333.83/21,158.80 = 8,874.58/x
  3. Step 3: Cross multiply
    15,333.83x = 21,158.80 × 8,874.58
  4. Step 4: Simplify right side
    15,333.83x = 187,775,463.30
  5. Step 5: Solve for x
    x = 187,775,463.30/15,333.83
  6. Step 6: Final answer
    x = 12,245.83

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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.