Home / 18,228.57-25,155.42-9,845.07

Finding the Fourth Proportional to 18,228.57, 25,155.42 and 9,845.07

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Solution

The fourth proportional to 18,228.57, 25,155.42 and 9,845.07 is: 13,586.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.57 : 25,155.42 = 9,845.07 : x
  2. Step 2: Convert to fraction form
    18,228.57/25,155.42 = 9,845.07/x
  3. Step 3: Cross multiply
    18,228.57x = 25,155.42 × 9,845.07
  4. Step 4: Simplify right side
    18,228.57x = 247,656,870.78
  5. Step 5: Solve for x
    x = 247,656,870.78/18,228.57
  6. Step 6: Final answer
    x = 13,586.19

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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.