Home / 8,765.02-13,149.51-2,921.86

Finding the Fourth Proportional to 8,765.02, 13,149.51 and 2,921.86

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Solution

The fourth proportional to 8,765.02, 13,149.51 and 2,921.86 is: 4,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,765.02 : 13,149.51 = 2,921.86 : x
  2. Step 2: Convert to fraction form
    8,765.02/13,149.51 = 2,921.86/x
  3. Step 3: Cross multiply
    8,765.02x = 13,149.51 × 2,921.86
  4. Step 4: Simplify right side
    8,765.02x = 38,421,027.29
  5. Step 5: Solve for x
    x = 38,421,027.29/8,765.02
  6. Step 6: Final answer
    x = 4,383.45

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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.