Home / 15,168.76-22,755.42-4,780.36

Finding the Fourth Proportional to 15,168.76, 22,755.42 and 4,780.36

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Solution

The fourth proportional to 15,168.76, 22,755.42 and 4,780.36 is: 7,171.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,168.76 : 22,755.42 = 4,780.36 : x
  2. Step 2: Convert to fraction form
    15,168.76/22,755.42 = 4,780.36/x
  3. Step 3: Cross multiply
    15,168.76x = 22,755.42 × 4,780.36
  4. Step 4: Simplify right side
    15,168.76x = 108,779,099.55
  5. Step 5: Solve for x
    x = 108,779,099.55/15,168.76
  6. Step 6: Final answer
    x = 7,171.26

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1.5x scale

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.