Home / 18,254.97-25,191.84-9,871.47

Finding the Fourth Proportional to 18,254.97, 25,191.84 and 9,871.47

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Solution

The fourth proportional to 18,254.97, 25,191.84 and 9,871.47 is: 13,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.97 : 25,191.84 = 9,871.47 : x
  2. Step 2: Convert to fraction form
    18,254.97/25,191.84 = 9,871.47/x
  3. Step 3: Cross multiply
    18,254.97x = 25,191.84 × 9,871.47
  4. Step 4: Simplify right side
    18,254.97x = 248,680,529.82
  5. Step 5: Solve for x
    x = 248,680,529.82/18,254.97
  6. Step 6: Final answer
    x = 13,622.62

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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.