Home / 12,381.60-18,577.86-5,000.47

Finding the Fourth Proportional to 12,381.60, 18,577.86 and 5,000.47

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Solution

The fourth proportional to 12,381.60, 18,577.86 and 5,000.47 is: 7,502.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.60 : 18,577.86 = 5,000.47 : x
  2. Step 2: Convert to fraction form
    12,381.60/18,577.86 = 5,000.47/x
  3. Step 3: Cross multiply
    12,381.60x = 18,577.86 × 5,000.47
  4. Step 4: Simplify right side
    12,381.60x = 92,898,031.59
  5. Step 5: Solve for x
    x = 92,898,031.59/12,381.60
  6. Step 6: Final answer
    x = 7,502.91

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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.