Home / 13,306.20-18,361.80-7,337.88

Finding the Fourth Proportional to 13,306.20, 18,361.80 and 7,337.88

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Solution

The fourth proportional to 13,306.20, 18,361.80 and 7,337.88 is: 10,125.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.20 : 18,361.80 = 7,337.88 : x
  2. Step 2: Convert to fraction form
    13,306.20/18,361.80 = 7,337.88/x
  3. Step 3: Cross multiply
    13,306.20x = 18,361.80 × 7,337.88
  4. Step 4: Simplify right side
    13,306.20x = 134,736,684.98
  5. Step 5: Solve for x
    x = 134,736,684.98/13,306.20
  6. Step 6: Final answer
    x = 10,125.86

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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.