Home / 8,575.32-11,820.57-7,887.96

Finding the Fourth Proportional to 8,575.32, 11,820.57 and 7,887.96

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Solution

The fourth proportional to 8,575.32, 11,820.57 and 7,887.96 is: 10,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.32 : 11,820.57 = 7,887.96 : x
  2. Step 2: Convert to fraction form
    8,575.32/11,820.57 = 7,887.96/x
  3. Step 3: Cross multiply
    8,575.32x = 11,820.57 × 7,887.96
  4. Step 4: Simplify right side
    8,575.32x = 93,240,183.34
  5. Step 5: Solve for x
    x = 93,240,183.34/8,575.32
  6. Step 6: Final answer
    x = 10,873.09

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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.