Home / 8,291.28-12,416.72-6,209.04

Finding the Fourth Proportional to 8,291.28, 12,416.72 and 6,209.04

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Solution

The fourth proportional to 8,291.28, 12,416.72 and 6,209.04 is: 9,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,291.28 : 12,416.72 = 6,209.04 : x
  2. Step 2: Convert to fraction form
    8,291.28/12,416.72 = 6,209.04/x
  3. Step 3: Cross multiply
    8,291.28x = 12,416.72 × 6,209.04
  4. Step 4: Simplify right side
    8,291.28x = 77,095,911.15
  5. Step 5: Solve for x
    x = 77,095,911.15/8,291.28
  6. Step 6: Final answer
    x = 9,298.43

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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.