Home / 14,385.81-21,577.14-3,856.86

Finding the Fourth Proportional to 14,385.81, 21,577.14 and 3,856.86

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Solution

The fourth proportional to 14,385.81, 21,577.14 and 3,856.86 is: 5,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,385.81 : 21,577.14 = 3,856.86 : x
  2. Step 2: Convert to fraction form
    14,385.81/21,577.14 = 3,856.86/x
  3. Step 3: Cross multiply
    14,385.81x = 21,577.14 × 3,856.86
  4. Step 4: Simplify right side
    14,385.81x = 83,220,008.18
  5. Step 5: Solve for x
    x = 83,220,008.18/14,385.81
  6. Step 6: Final answer
    x = 5,784.87

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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.