Home / 13,537.74-20,306.61-8,919.66

Finding the Fourth Proportional to 13,537.74, 20,306.61 and 8,919.66

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Solution

The fourth proportional to 13,537.74, 20,306.61 and 8,919.66 is: 13,379.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.74 : 20,306.61 = 8,919.66 : x
  2. Step 2: Convert to fraction form
    13,537.74/20,306.61 = 8,919.66/x
  3. Step 3: Cross multiply
    13,537.74x = 20,306.61 × 8,919.66
  4. Step 4: Simplify right side
    13,537.74x = 181,128,056.95
  5. Step 5: Solve for x
    x = 181,128,056.95/13,537.74
  6. Step 6: Final answer
    x = 13,379.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.