Home / 18,442.06-25,442.79-11,356.18

Finding the Fourth Proportional to 18,442.06, 25,442.79 and 11,356.18

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Solution

The fourth proportional to 18,442.06, 25,442.79 and 11,356.18 is: 15,667.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442.06 : 25,442.79 = 11,356.18 : x
  2. Step 2: Convert to fraction form
    18,442.06/25,442.79 = 11,356.18/x
  3. Step 3: Cross multiply
    18,442.06x = 25,442.79 × 11,356.18
  4. Step 4: Simplify right side
    18,442.06x = 288,932,902.94
  5. Step 5: Solve for x
    x = 288,932,902.94/18,442.06
  6. Step 6: Final answer
    x = 15,667.06

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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.