Home / 12,570.60-17,348.49-8,091.57

Finding the Fourth Proportional to 12,570.60, 17,348.49 and 8,091.57

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Solution

The fourth proportional to 12,570.60, 17,348.49 and 8,091.57 is: 11,167.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.60 : 17,348.49 = 8,091.57 : x
  2. Step 2: Convert to fraction form
    12,570.60/17,348.49 = 8,091.57/x
  3. Step 3: Cross multiply
    12,570.60x = 17,348.49 × 8,091.57
  4. Step 4: Simplify right side
    12,570.60x = 140,376,521.23
  5. Step 5: Solve for x
    x = 140,376,521.23/12,570.60
  6. Step 6: Final answer
    x = 11,167.05

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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.