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Finding the Fourth Proportional to 8,655.71, 12,995.57 and 4,441.95

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Solution

The fourth proportional to 8,655.71, 12,995.57 and 4,441.95 is: 6,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.71 : 12,995.57 = 4,441.95 : x
  2. Step 2: Convert to fraction form
    8,655.71/12,995.57 = 4,441.95/x
  3. Step 3: Cross multiply
    8,655.71x = 12,995.57 × 4,441.95
  4. Step 4: Simplify right side
    8,655.71x = 57,725,683.27
  5. Step 5: Solve for x
    x = 57,725,683.27/8,655.71
  6. Step 6: Final answer
    x = 6,669.09

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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.