Home / 12,456.43-17,181.45-9,799.22

Finding the Fourth Proportional to 12,456.43, 17,181.45 and 9,799.22

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Solution

The fourth proportional to 12,456.43, 17,181.45 and 9,799.22 is: 13,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456.43 : 17,181.45 = 9,799.22 : x
  2. Step 2: Convert to fraction form
    12,456.43/17,181.45 = 9,799.22/x
  3. Step 3: Cross multiply
    12,456.43x = 17,181.45 × 9,799.22
  4. Step 4: Simplify right side
    12,456.43x = 168,364,851.42
  5. Step 5: Solve for x
    x = 168,364,851.42/12,456.43
  6. Step 6: Final answer
    x = 13,516.30

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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.