Home / 13,541.48-20,310.17-5,220.29

Finding the Fourth Proportional to 13,541.48, 20,310.17 and 5,220.29

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Solution

The fourth proportional to 13,541.48, 20,310.17 and 5,220.29 is: 7,829.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.48 : 20,310.17 = 5,220.29 : x
  2. Step 2: Convert to fraction form
    13,541.48/20,310.17 = 5,220.29/x
  3. Step 3: Cross multiply
    13,541.48x = 20,310.17 × 5,220.29
  4. Step 4: Simplify right side
    13,541.48x = 106,024,849.70
  5. Step 5: Solve for x
    x = 106,024,849.70/13,541.48
  6. Step 6: Final answer
    x = 7,829.63

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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.