Home / 12,711.90-17,503.26-11,293.11

Finding the Fourth Proportional to 12,711.90, 17,503.26 and 11,293.11

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Solution

The fourth proportional to 12,711.90, 17,503.26 and 11,293.11 is: 15,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,711.90 : 17,503.26 = 11,293.11 : x
  2. Step 2: Convert to fraction form
    12,711.90/17,503.26 = 11,293.11/x
  3. Step 3: Cross multiply
    12,711.90x = 17,503.26 × 11,293.11
  4. Step 4: Simplify right side
    12,711.90x = 197,666,240.54
  5. Step 5: Solve for x
    x = 197,666,240.54/12,711.90
  6. Step 6: Final answer
    x = 15,549.70

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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.