Home / 8,587.40-12,877.26-2,429.96

Finding the Fourth Proportional to 8,587.40, 12,877.26 and 2,429.96

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Solution

The fourth proportional to 8,587.40, 12,877.26 and 2,429.96 is: 3,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,587.40 : 12,877.26 = 2,429.96 : x
  2. Step 2: Convert to fraction form
    8,587.40/12,877.26 = 2,429.96/x
  3. Step 3: Cross multiply
    8,587.40x = 12,877.26 × 2,429.96
  4. Step 4: Simplify right side
    8,587.40x = 31,291,226.71
  5. Step 5: Solve for x
    x = 31,291,226.71/8,587.40
  6. Step 6: Final answer
    x = 3,643.85

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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.