Home / 15,025.40-20,734.24-8,310.64

Finding the Fourth Proportional to 15,025.40, 20,734.24 and 8,310.64

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Solution

The fourth proportional to 15,025.40, 20,734.24 and 8,310.64 is: 11,468.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,025.40 : 20,734.24 = 8,310.64 : x
  2. Step 2: Convert to fraction form
    15,025.40/20,734.24 = 8,310.64/x
  3. Step 3: Cross multiply
    15,025.40x = 20,734.24 × 8,310.64
  4. Step 4: Simplify right side
    15,025.40x = 172,314,804.31
  5. Step 5: Solve for x
    x = 172,314,804.31/15,025.40
  6. Step 6: Final answer
    x = 11,468.23

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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.