Home / 13,340.76-18,411.42-7,753.56

Finding the Fourth Proportional to 13,340.76, 18,411.42 and 7,753.56

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Solution

The fourth proportional to 13,340.76, 18,411.42 and 7,753.56 is: 10,700.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,340.76 : 18,411.42 = 7,753.56 : x
  2. Step 2: Convert to fraction form
    13,340.76/18,411.42 = 7,753.56/x
  3. Step 3: Cross multiply
    13,340.76x = 18,411.42 × 7,753.56
  4. Step 4: Simplify right side
    13,340.76x = 142,754,049.66
  5. Step 5: Solve for x
    x = 142,754,049.66/13,340.76
  6. Step 6: Final answer
    x = 10,700.59

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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.