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Finding the Fourth Proportional to 12,874.92, 17,765.08 and 7,570.80

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Solution

The fourth proportional to 12,874.92, 17,765.08 and 7,570.80 is: 10,446.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,874.92 : 17,765.08 = 7,570.80 : x
  2. Step 2: Convert to fraction form
    12,874.92/17,765.08 = 7,570.80/x
  3. Step 3: Cross multiply
    12,874.92x = 17,765.08 × 7,570.80
  4. Step 4: Simplify right side
    12,874.92x = 134,495,867.66
  5. Step 5: Solve for x
    x = 134,495,867.66/12,874.92
  6. Step 6: Final answer
    x = 10,446.35

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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.