Home / 13,613.13-20,420.96-5,293.77

Finding the Fourth Proportional to 13,613.13, 20,420.96 and 5,293.77

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Solution

The fourth proportional to 13,613.13, 20,420.96 and 5,293.77 is: 7,941.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.13 : 20,420.96 = 5,293.77 : x
  2. Step 2: Convert to fraction form
    13,613.13/20,420.96 = 5,293.77/x
  3. Step 3: Cross multiply
    13,613.13x = 20,420.96 × 5,293.77
  4. Step 4: Simplify right side
    13,613.13x = 108,103,877.24
  5. Step 5: Solve for x
    x = 108,103,877.24/13,613.13
  6. Step 6: Final answer
    x = 7,941.15

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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.