Home / 10,575.32-15,833.46-8,120.12

Finding the Fourth Proportional to 10,575.32, 15,833.46 and 8,120.12

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Solution

The fourth proportional to 10,575.32, 15,833.46 and 8,120.12 is: 12,157.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,575.32 : 15,833.46 = 8,120.12 : x
  2. Step 2: Convert to fraction form
    10,575.32/15,833.46 = 8,120.12/x
  3. Step 3: Cross multiply
    10,575.32x = 15,833.46 × 8,120.12
  4. Step 4: Simplify right side
    10,575.32x = 128,569,595.22
  5. Step 5: Solve for x
    x = 128,569,595.22/10,575.32
  6. Step 6: Final answer
    x = 12,157.51

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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.