Home / 18,559.65-25,578.85-13,515.88

Finding the Fourth Proportional to 18,559.65, 25,578.85 and 13,515.88

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Solution

The fourth proportional to 18,559.65, 25,578.85 and 13,515.88 is: 18,627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,559.65 : 25,578.85 = 13,515.88 : x
  2. Step 2: Convert to fraction form
    18,559.65/25,578.85 = 13,515.88/x
  3. Step 3: Cross multiply
    18,559.65x = 25,578.85 × 13,515.88
  4. Step 4: Simplify right side
    18,559.65x = 345,720,599.56
  5. Step 5: Solve for x
    x = 345,720,599.56/18,559.65
  6. Step 6: Final answer
    x = 18,627.54

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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.