Home / 13,306.41-18,361.80-7,337.70

Finding the Fourth Proportional to 13,306.41, 18,361.80 and 7,337.70

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Solution

The fourth proportional to 13,306.41, 18,361.80 and 7,337.70 is: 10,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.41 : 18,361.80 = 7,337.70 : x
  2. Step 2: Convert to fraction form
    13,306.41/18,361.80 = 7,337.70/x
  3. Step 3: Cross multiply
    13,306.41x = 18,361.80 × 7,337.70
  4. Step 4: Simplify right side
    13,306.41x = 134,733,379.86
  5. Step 5: Solve for x
    x = 134,733,379.86/13,306.41
  6. Step 6: Final answer
    x = 10,125.45

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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.