Home / 8,715.88-13,049.50-6,657.64

Finding the Fourth Proportional to 8,715.88, 13,049.50 and 6,657.64

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Solution

The fourth proportional to 8,715.88, 13,049.50 and 6,657.64 is: 9,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.88 : 13,049.50 = 6,657.64 : x
  2. Step 2: Convert to fraction form
    8,715.88/13,049.50 = 6,657.64/x
  3. Step 3: Cross multiply
    8,715.88x = 13,049.50 × 6,657.64
  4. Step 4: Simplify right side
    8,715.88x = 86,878,873.18
  5. Step 5: Solve for x
    x = 86,878,873.18/8,715.88
  6. Step 6: Final answer
    x = 9,967.88

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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.