Home / 10,309.50-15,451.57-4,755.13

Finding the Fourth Proportional to 10,309.50, 15,451.57 and 4,755.13

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Solution

The fourth proportional to 10,309.50, 15,451.57 and 4,755.13 is: 7,126.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.50 : 15,451.57 = 4,755.13 : x
  2. Step 2: Convert to fraction form
    10,309.50/15,451.57 = 4,755.13/x
  3. Step 3: Cross multiply
    10,309.50x = 15,451.57 × 4,755.13
  4. Step 4: Simplify right side
    10,309.50x = 73,474,224.05
  5. Step 5: Solve for x
    x = 73,474,224.05/10,309.50
  6. Step 6: Final answer
    x = 7,126.85

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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.