Home / 18,366.45-25,345.25-10,711.12

Finding the Fourth Proportional to 18,366.45, 25,345.25 and 10,711.12

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Solution

The fourth proportional to 18,366.45, 25,345.25 and 10,711.12 is: 14,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,366.45 : 25,345.25 = 10,711.12 : x
  2. Step 2: Convert to fraction form
    18,366.45/25,345.25 = 10,711.12/x
  3. Step 3: Cross multiply
    18,366.45x = 25,345.25 × 10,711.12
  4. Step 4: Simplify right side
    18,366.45x = 271,476,014.18
  5. Step 5: Solve for x
    x = 271,476,014.18/18,366.45
  6. Step 6: Final answer
    x = 14,781.08

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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.