Home / 12,387.28-17,101.08-9,548.44

Finding the Fourth Proportional to 12,387.28, 17,101.08 and 9,548.44

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Solution

The fourth proportional to 12,387.28, 17,101.08 and 9,548.44 is: 13,181.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.28 : 17,101.08 = 9,548.44 : x
  2. Step 2: Convert to fraction form
    12,387.28/17,101.08 = 9,548.44/x
  3. Step 3: Cross multiply
    12,387.28x = 17,101.08 × 9,548.44
  4. Step 4: Simplify right side
    12,387.28x = 163,288,636.32
  5. Step 5: Solve for x
    x = 163,288,636.32/12,387.28
  6. Step 6: Final answer
    x = 13,181.96

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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.