Home / 15,043.95-20,761.42-8,330.32

Finding the Fourth Proportional to 15,043.95, 20,761.42 and 8,330.32

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Solution

The fourth proportional to 15,043.95, 20,761.42 and 8,330.32 is: 11,496.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.95 : 20,761.42 = 8,330.32 : x
  2. Step 2: Convert to fraction form
    15,043.95/20,761.42 = 8,330.32/x
  3. Step 3: Cross multiply
    15,043.95x = 20,761.42 × 8,330.32
  4. Step 4: Simplify right side
    15,043.95x = 172,949,272.25
  5. Step 5: Solve for x
    x = 172,949,272.25/15,043.95
  6. Step 6: Final answer
    x = 11,496.27

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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.