Home / 13,306.12-18,362.22-7,337.78

Finding the Fourth Proportional to 13,306.12, 18,362.22 and 7,337.78

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Solution

The fourth proportional to 13,306.12, 18,362.22 and 7,337.78 is: 10,126.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.12 : 18,362.22 = 7,337.78 : x
  2. Step 2: Convert to fraction form
    13,306.12/18,362.22 = 7,337.78/x
  3. Step 3: Cross multiply
    13,306.12x = 18,362.22 × 7,337.78
  4. Step 4: Simplify right side
    13,306.12x = 134,737,930.67
  5. Step 5: Solve for x
    x = 134,737,930.67/13,306.12
  6. Step 6: Final answer
    x = 10,126.01

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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.