Home / 13,125.20-18,113.46-7,459.82

Finding the Fourth Proportional to 13,125.20, 18,113.46 and 7,459.82

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Solution

The fourth proportional to 13,125.20, 18,113.46 and 7,459.82 is: 10,294.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.20 : 18,113.46 = 7,459.82 : x
  2. Step 2: Convert to fraction form
    13,125.20/18,113.46 = 7,459.82/x
  3. Step 3: Cross multiply
    13,125.20x = 18,113.46 × 7,459.82
  4. Step 4: Simplify right side
    13,125.20x = 135,123,151.18
  5. Step 5: Solve for x
    x = 135,123,151.18/13,125.20
  6. Step 6: Final answer
    x = 10,294.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.