Home / 13,613.93-20,415.61-5,292.85

Finding the Fourth Proportional to 13,613.93, 20,415.61 and 5,292.85

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Solution

The fourth proportional to 13,613.93, 20,415.61 and 5,292.85 is: 7,937.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.93 : 20,415.61 = 5,292.85 : x
  2. Step 2: Convert to fraction form
    13,613.93/20,415.61 = 5,292.85/x
  3. Step 3: Cross multiply
    13,613.93x = 20,415.61 × 5,292.85
  4. Step 4: Simplify right side
    13,613.93x = 108,056,632.85
  5. Step 5: Solve for x
    x = 108,056,632.85/13,613.93
  6. Step 6: Final answer
    x = 7,937.21

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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.