Home / 17,613.60-26,420.40-11,392.80

Finding the Fourth Proportional to 17,613.60, 26,420.40 and 11,392.80

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Solution

The fourth proportional to 17,613.60, 26,420.40 and 11,392.80 is: 17,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,613.60 : 26,420.40 = 11,392.80 : x
  2. Step 2: Convert to fraction form
    17,613.60/26,420.40 = 11,392.80/x
  3. Step 3: Cross multiply
    17,613.60x = 26,420.40 × 11,392.80
  4. Step 4: Simplify right side
    17,613.60x = 301,002,333.12
  5. Step 5: Solve for x
    x = 301,002,333.12/17,613.60
  6. Step 6: Final answer
    x = 17,089.20

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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.