Home / 18,516.60-25,548.84-10,959.15

Finding the Fourth Proportional to 18,516.60, 25,548.84 and 10,959.15

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Solution

The fourth proportional to 18,516.60, 25,548.84 and 10,959.15 is: 15,121.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.60 : 25,548.84 = 10,959.15 : x
  2. Step 2: Convert to fraction form
    18,516.60/25,548.84 = 10,959.15/x
  3. Step 3: Cross multiply
    18,516.60x = 25,548.84 × 10,959.15
  4. Step 4: Simplify right side
    18,516.60x = 279,993,569.89
  5. Step 5: Solve for x
    x = 279,993,569.89/18,516.60
  6. Step 6: Final answer
    x = 15,121.22

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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.