Home / 8,785.12-13,182.88-3,242.32

Finding the Fourth Proportional to 8,785.12, 13,182.88 and 3,242.32

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Solution

The fourth proportional to 8,785.12, 13,182.88 and 3,242.32 is: 4,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.12 : 13,182.88 = 3,242.32 : x
  2. Step 2: Convert to fraction form
    8,785.12/13,182.88 = 3,242.32/x
  3. Step 3: Cross multiply
    8,785.12x = 13,182.88 × 3,242.32
  4. Step 4: Simplify right side
    8,785.12x = 42,743,099.27
  5. Step 5: Solve for x
    x = 42,743,099.27/8,785.12
  6. Step 6: Final answer
    x = 4,865.40

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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.