Home / 18,853.26-25,987.68-15,064.50

Finding the Fourth Proportional to 18,853.26, 25,987.68 and 15,064.50

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Solution

The fourth proportional to 18,853.26, 25,987.68 and 15,064.50 is: 20,765.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,853.26 : 25,987.68 = 15,064.50 : x
  2. Step 2: Convert to fraction form
    18,853.26/25,987.68 = 15,064.50/x
  3. Step 3: Cross multiply
    18,853.26x = 25,987.68 × 15,064.50
  4. Step 4: Simplify right side
    18,853.26x = 391,491,405.36
  5. Step 5: Solve for x
    x = 391,491,405.36/18,853.26
  6. Step 6: Final answer
    x = 20,765.18

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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.