Home / 18,195.02-25,105.34-10,639.88

Finding the Fourth Proportional to 18,195.02, 25,105.34 and 10,639.88

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Solution

The fourth proportional to 18,195.02, 25,105.34 and 10,639.88 is: 14,680.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,195.02 : 25,105.34 = 10,639.88 : x
  2. Step 2: Convert to fraction form
    18,195.02/25,105.34 = 10,639.88/x
  3. Step 3: Cross multiply
    18,195.02x = 25,105.34 × 10,639.88
  4. Step 4: Simplify right side
    18,195.02x = 267,117,804.96
  5. Step 5: Solve for x
    x = 267,117,804.96/18,195.02
  6. Step 6: Final answer
    x = 14,680.82

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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.