Home / 18,367.13-25,346.64-10,915.13

Finding the Fourth Proportional to 18,367.13, 25,346.64 and 10,915.13

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Solution

The fourth proportional to 18,367.13, 25,346.64 and 10,915.13 is: 15,062.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,367.13 : 25,346.64 = 10,915.13 : x
  2. Step 2: Convert to fraction form
    18,367.13/25,346.64 = 10,915.13/x
  3. Step 3: Cross multiply
    18,367.13x = 25,346.64 × 10,915.13
  4. Step 4: Simplify right side
    18,367.13x = 276,661,743.93
  5. Step 5: Solve for x
    x = 276,661,743.93/18,367.13
  6. Step 6: Final answer
    x = 15,062.88

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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.