Home / 12,538.89-17,291.75-9,549.45

Finding the Fourth Proportional to 12,538.89, 17,291.75 and 9,549.45

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Solution

The fourth proportional to 12,538.89, 17,291.75 and 9,549.45 is: 13,169.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.89 : 17,291.75 = 9,549.45 : x
  2. Step 2: Convert to fraction form
    12,538.89/17,291.75 = 9,549.45/x
  3. Step 3: Cross multiply
    12,538.89x = 17,291.75 × 9,549.45
  4. Step 4: Simplify right side
    12,538.89x = 165,126,654.29
  5. Step 5: Solve for x
    x = 165,126,654.29/12,538.89
  6. Step 6: Final answer
    x = 13,169.16

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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.