Home / 8,637.30-12,956.16-6,459.86

Finding the Fourth Proportional to 8,637.30, 12,956.16 and 6,459.86

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Solution

The fourth proportional to 8,637.30, 12,956.16 and 6,459.86 is: 9,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,637.30 : 12,956.16 = 6,459.86 : x
  2. Step 2: Convert to fraction form
    8,637.30/12,956.16 = 6,459.86/x
  3. Step 3: Cross multiply
    8,637.30x = 12,956.16 × 6,459.86
  4. Step 4: Simplify right side
    8,637.30x = 83,694,914.96
  5. Step 5: Solve for x
    x = 83,694,914.96/8,637.30
  6. Step 6: Final answer
    x = 9,689.94

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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.