Home / 12,400.20-17,092.26-9,743.40

Finding the Fourth Proportional to 12,400.20, 17,092.26 and 9,743.40

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Solution

The fourth proportional to 12,400.20, 17,092.26 and 9,743.40 is: 13,430.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,400.20 : 17,092.26 = 9,743.40 : x
  2. Step 2: Convert to fraction form
    12,400.20/17,092.26 = 9,743.40/x
  3. Step 3: Cross multiply
    12,400.20x = 17,092.26 × 9,743.40
  4. Step 4: Simplify right side
    12,400.20x = 166,536,726.08
  5. Step 5: Solve for x
    x = 166,536,726.08/12,400.20
  6. Step 6: Final answer
    x = 13,430.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.