Home / 13,613.95-20,422.08-3,753.23

Finding the Fourth Proportional to 13,613.95, 20,422.08 and 3,753.23

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Solution

The fourth proportional to 13,613.95, 20,422.08 and 3,753.23 is: 5,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.95 : 20,422.08 = 3,753.23 : x
  2. Step 2: Convert to fraction form
    13,613.95/20,422.08 = 3,753.23/x
  3. Step 3: Cross multiply
    13,613.95x = 20,422.08 × 3,753.23
  4. Step 4: Simplify right side
    13,613.95x = 76,648,763.32
  5. Step 5: Solve for x
    x = 76,648,763.32/13,613.95
  6. Step 6: Final answer
    x = 5,630.16

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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.