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Finding the Fourth Proportional to 14,871.54, 22,341.87 and 8,719.86

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Solution

The fourth proportional to 14,871.54, 22,341.87 and 8,719.86 is: 13,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.54 : 22,341.87 = 8,719.86 : x
  2. Step 2: Convert to fraction form
    14,871.54/22,341.87 = 8,719.86/x
  3. Step 3: Cross multiply
    14,871.54x = 22,341.87 × 8,719.86
  4. Step 4: Simplify right side
    14,871.54x = 194,817,978.54
  5. Step 5: Solve for x
    x = 194,817,978.54/14,871.54
  6. Step 6: Final answer
    x = 13,100.05

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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.