Home / 8,520.01-12,781.74-3,589.65

Finding the Fourth Proportional to 8,520.01, 12,781.74 and 3,589.65

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Solution

The fourth proportional to 8,520.01, 12,781.74 and 3,589.65 is: 5,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.01 : 12,781.74 = 3,589.65 : x
  2. Step 2: Convert to fraction form
    8,520.01/12,781.74 = 3,589.65/x
  3. Step 3: Cross multiply
    8,520.01x = 12,781.74 × 3,589.65
  4. Step 4: Simplify right side
    8,520.01x = 45,881,971.34
  5. Step 5: Solve for x
    x = 45,881,971.34/8,520.01
  6. Step 6: Final answer
    x = 5,385.20

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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.