Home / 14,102.57-21,154.91-4,742.61

Finding the Fourth Proportional to 14,102.57, 21,154.91 and 4,742.61

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Solution

The fourth proportional to 14,102.57, 21,154.91 and 4,742.61 is: 7,114.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.57 : 21,154.91 = 4,742.61 : x
  2. Step 2: Convert to fraction form
    14,102.57/21,154.91 = 4,742.61/x
  3. Step 3: Cross multiply
    14,102.57x = 21,154.91 × 4,742.61
  4. Step 4: Simplify right side
    14,102.57x = 100,329,487.72
  5. Step 5: Solve for x
    x = 100,329,487.72/14,102.57
  6. Step 6: Final answer
    x = 7,114.27

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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.