Home / 8,779.11-13,165.75-4,393.56

Finding the Fourth Proportional to 8,779.11, 13,165.75 and 4,393.56

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Solution

The fourth proportional to 8,779.11, 13,165.75 and 4,393.56 is: 6,588.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.11 : 13,165.75 = 4,393.56 : x
  2. Step 2: Convert to fraction form
    8,779.11/13,165.75 = 4,393.56/x
  3. Step 3: Cross multiply
    8,779.11x = 13,165.75 × 4,393.56
  4. Step 4: Simplify right side
    8,779.11x = 57,844,512.57
  5. Step 5: Solve for x
    x = 57,844,512.57/8,779.11
  6. Step 6: Final answer
    x = 6,588.88

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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.