Home / 18,254.36-25,191.01-9,870.86

Finding the Fourth Proportional to 18,254.36, 25,191.01 and 9,870.86

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Solution

The fourth proportional to 18,254.36, 25,191.01 and 9,870.86 is: 13,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,254.36 : 25,191.01 = 9,870.86 : x
  2. Step 2: Convert to fraction form
    18,254.36/25,191.01 = 9,870.86/x
  3. Step 3: Cross multiply
    18,254.36x = 25,191.01 × 9,870.86
  4. Step 4: Simplify right side
    18,254.36x = 248,656,932.97
  5. Step 5: Solve for x
    x = 248,656,932.97/18,254.36
  6. Step 6: Final answer
    x = 13,621.78

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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.