Home / 12,538.11-17,308.10-8,776.04

Finding the Fourth Proportional to 12,538.11, 17,308.10 and 8,776.04

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Solution

The fourth proportional to 12,538.11, 17,308.10 and 8,776.04 is: 12,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538.11 : 17,308.10 = 8,776.04 : x
  2. Step 2: Convert to fraction form
    12,538.11/17,308.10 = 8,776.04/x
  3. Step 3: Cross multiply
    12,538.11x = 17,308.10 × 8,776.04
  4. Step 4: Simplify right side
    12,538.11x = 151,896,610.22
  5. Step 5: Solve for x
    x = 151,896,610.22/12,538.11
  6. Step 6: Final answer
    x = 12,114.80

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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.