Home / 12,538.18-17,306.50-7,236.46

Finding the Fourth Proportional to 12,538.18, 17,306.50 and 7,236.46

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Solution

The fourth proportional to 12,538.18, 17,306.50 and 7,236.46 is: 9,988.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.18 : 17,306.50 = 7,236.46 : x
  2. Step 2: Convert to fraction form
    12,538.18/17,306.50 = 7,236.46/x
  3. Step 3: Cross multiply
    12,538.18x = 17,306.50 × 7,236.46
  4. Step 4: Simplify right side
    12,538.18x = 125,237,794.99
  5. Step 5: Solve for x
    x = 125,237,794.99/12,538.18
  6. Step 6: Final answer
    x = 9,988.51

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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.