Home / 10,515.05-15,772.22-2,617.55

Finding the Fourth Proportional to 10,515.05, 15,772.22 and 2,617.55

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Solution

The fourth proportional to 10,515.05, 15,772.22 and 2,617.55 is: 3,926.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515.05 : 15,772.22 = 2,617.55 : x
  2. Step 2: Convert to fraction form
    10,515.05/15,772.22 = 2,617.55/x
  3. Step 3: Cross multiply
    10,515.05x = 15,772.22 × 2,617.55
  4. Step 4: Simplify right side
    10,515.05x = 41,284,574.46
  5. Step 5: Solve for x
    x = 41,284,574.46/10,515.05
  6. Step 6: Final answer
    x = 3,926.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.