Home / 8,281.12-12,392.52-6,317.68

Finding the Fourth Proportional to 8,281.12, 12,392.52 and 6,317.68

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Solution

The fourth proportional to 8,281.12, 12,392.52 and 6,317.68 is: 9,454.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.12 : 12,392.52 = 6,317.68 : x
  2. Step 2: Convert to fraction form
    8,281.12/12,392.52 = 6,317.68/x
  3. Step 3: Cross multiply
    8,281.12x = 12,392.52 × 6,317.68
  4. Step 4: Simplify right side
    8,281.12x = 78,291,975.75
  5. Step 5: Solve for x
    x = 78,291,975.75/8,281.12
  6. Step 6: Final answer
    x = 9,454.27

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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.