Home / 12,581.79-17,363.24-7,278.27

Finding the Fourth Proportional to 12,581.79, 17,363.24 and 7,278.27

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Solution

The fourth proportional to 12,581.79, 17,363.24 and 7,278.27 is: 10,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.79 : 17,363.24 = 7,278.27 : x
  2. Step 2: Convert to fraction form
    12,581.79/17,363.24 = 7,278.27/x
  3. Step 3: Cross multiply
    12,581.79x = 17,363.24 × 7,278.27
  4. Step 4: Simplify right side
    12,581.79x = 126,374,312.40
  5. Step 5: Solve for x
    x = 126,374,312.40/12,581.79
  6. Step 6: Final answer
    x = 10,044.22

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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.