Home / 12,720.04-17,544.90-8,951.11

Finding the Fourth Proportional to 12,720.04, 17,544.90 and 8,951.11

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Solution

The fourth proportional to 12,720.04, 17,544.90 and 8,951.11 is: 12,346.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.04 : 17,544.90 = 8,951.11 : x
  2. Step 2: Convert to fraction form
    12,720.04/17,544.90 = 8,951.11/x
  3. Step 3: Cross multiply
    12,720.04x = 17,544.90 × 8,951.11
  4. Step 4: Simplify right side
    12,720.04x = 157,046,319.54
  5. Step 5: Solve for x
    x = 157,046,319.54/12,720.04
  6. Step 6: Final answer
    x = 12,346.37

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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.