Home / 10,414.32-15,621.32-5,220.08

Finding the Fourth Proportional to 10,414.32, 15,621.32 and 5,220.08

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Solution

The fourth proportional to 10,414.32, 15,621.32 and 5,220.08 is: 7,830.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,414.32 : 15,621.32 = 5,220.08 : x
  2. Step 2: Convert to fraction form
    10,414.32/15,621.32 = 5,220.08/x
  3. Step 3: Cross multiply
    10,414.32x = 15,621.32 × 5,220.08
  4. Step 4: Simplify right side
    10,414.32x = 81,544,540.11
  5. Step 5: Solve for x
    x = 81,544,540.11/10,414.32
  6. Step 6: Final answer
    x = 7,830.04

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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.