Home / 8,765.09-12,098.89-5,228.30

Finding the Fourth Proportional to 8,765.09, 12,098.89 and 5,228.30

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Solution

The fourth proportional to 8,765.09, 12,098.89 and 5,228.30 is: 7,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.09 : 12,098.89 = 5,228.30 : x
  2. Step 2: Convert to fraction form
    8,765.09/12,098.89 = 5,228.30/x
  3. Step 3: Cross multiply
    8,765.09x = 12,098.89 × 5,228.30
  4. Step 4: Simplify right side
    8,765.09x = 63,256,610.02
  5. Step 5: Solve for x
    x = 63,256,610.02/8,765.09
  6. Step 6: Final answer
    x = 7,216.88

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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.