Home / 12,747.22-17,581.80-7,441.72

Finding the Fourth Proportional to 12,747.22, 17,581.80 and 7,441.72

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Solution

The fourth proportional to 12,747.22, 17,581.80 and 7,441.72 is: 10,264.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.22 : 17,581.80 = 7,441.72 : x
  2. Step 2: Convert to fraction form
    12,747.22/17,581.80 = 7,441.72/x
  3. Step 3: Cross multiply
    12,747.22x = 17,581.80 × 7,441.72
  4. Step 4: Simplify right side
    12,747.22x = 130,838,832.70
  5. Step 5: Solve for x
    x = 130,838,832.70/12,747.22
  6. Step 6: Final answer
    x = 10,264.11

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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.