Home / 18,255.25-25,196.28-11,870.74

Finding the Fourth Proportional to 18,255.25, 25,196.28 and 11,870.74

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Solution

The fourth proportional to 18,255.25, 25,196.28 and 11,870.74 is: 16,384.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.25 : 25,196.28 = 11,870.74 : x
  2. Step 2: Convert to fraction form
    18,255.25/25,196.28 = 11,870.74/x
  3. Step 3: Cross multiply
    18,255.25x = 25,196.28 × 11,870.74
  4. Step 4: Simplify right side
    18,255.25x = 299,098,488.85
  5. Step 5: Solve for x
    x = 299,098,488.85/18,255.25
  6. Step 6: Final answer
    x = 16,384.25

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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.