Home / 12,581.75-17,363.13-7,276.89

Finding the Fourth Proportional to 12,581.75, 17,363.13 and 7,276.89

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Solution

The fourth proportional to 12,581.75, 17,363.13 and 7,276.89 is: 10,042.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.75 : 17,363.13 = 7,276.89 : x
  2. Step 2: Convert to fraction form
    12,581.75/17,363.13 = 7,276.89/x
  3. Step 3: Cross multiply
    12,581.75x = 17,363.13 × 7,276.89
  4. Step 4: Simplify right side
    12,581.75x = 126,349,587.07
  5. Step 5: Solve for x
    x = 126,349,587.07/12,581.75
  6. Step 6: Final answer
    x = 10,042.29

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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.