Home / 12,488.30-17,254.11-12,365.42

Finding the Fourth Proportional to 12,488.30, 17,254.11 and 12,365.42

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Solution

The fourth proportional to 12,488.30, 17,254.11 and 12,365.42 is: 17,084.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.30 : 17,254.11 = 12,365.42 : x
  2. Step 2: Convert to fraction form
    12,488.30/17,254.11 = 12,365.42/x
  3. Step 3: Cross multiply
    12,488.30x = 17,254.11 × 12,365.42
  4. Step 4: Simplify right side
    12,488.30x = 213,354,316.88
  5. Step 5: Solve for x
    x = 213,354,316.88/12,488.30
  6. Step 6: Final answer
    x = 17,084.34

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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.