Home / 8,387.16-12,582.24-3,454.05

Finding the Fourth Proportional to 8,387.16, 12,582.24 and 3,454.05

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Solution

The fourth proportional to 8,387.16, 12,582.24 and 3,454.05 is: 5,181.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,387.16 : 12,582.24 = 3,454.05 : x
  2. Step 2: Convert to fraction form
    8,387.16/12,582.24 = 3,454.05/x
  3. Step 3: Cross multiply
    8,387.16x = 12,582.24 × 3,454.05
  4. Step 4: Simplify right side
    8,387.16x = 43,459,686.07
  5. Step 5: Solve for x
    x = 43,459,686.07/8,387.16
  6. Step 6: Final answer
    x = 5,181.69

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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.