Home / 18,260.31-25,189.56-12,585.18

Finding the Fourth Proportional to 18,260.31, 25,189.56 and 12,585.18

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Solution

The fourth proportional to 18,260.31, 25,189.56 and 12,585.18 is: 17,360.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,260.31 : 25,189.56 = 12,585.18 : x
  2. Step 2: Convert to fraction form
    18,260.31/25,189.56 = 12,585.18/x
  3. Step 3: Cross multiply
    18,260.31x = 25,189.56 × 12,585.18
  4. Step 4: Simplify right side
    18,260.31x = 317,015,146.72
  5. Step 5: Solve for x
    x = 317,015,146.72/18,260.31
  6. Step 6: Final answer
    x = 17,360.89

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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.