Home / 13,306.88-18,363.11-7,338.55

Finding the Fourth Proportional to 13,306.88, 18,363.11 and 7,338.55

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Solution

The fourth proportional to 13,306.88, 18,363.11 and 7,338.55 is: 10,126.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.88 : 18,363.11 = 7,338.55 : x
  2. Step 2: Convert to fraction form
    13,306.88/18,363.11 = 7,338.55/x
  3. Step 3: Cross multiply
    13,306.88x = 18,363.11 × 7,338.55
  4. Step 4: Simplify right side
    13,306.88x = 134,758,552.72
  5. Step 5: Solve for x
    x = 134,758,552.72/13,306.88
  6. Step 6: Final answer
    x = 10,126.98

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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.