Home / 12,505.76-18,763.52-4,720.04

Finding the Fourth Proportional to 12,505.76, 18,763.52 and 4,720.04

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Solution

The fourth proportional to 12,505.76, 18,763.52 and 4,720.04 is: 7,081.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.76 : 18,763.52 = 4,720.04 : x
  2. Step 2: Convert to fraction form
    12,505.76/18,763.52 = 4,720.04/x
  3. Step 3: Cross multiply
    12,505.76x = 18,763.52 × 4,720.04
  4. Step 4: Simplify right side
    12,505.76x = 88,564,564.94
  5. Step 5: Solve for x
    x = 88,564,564.94/12,505.76
  6. Step 6: Final answer
    x = 7,081.90

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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.