Home / 8,146.60-11,226.18-5,782.12

Finding the Fourth Proportional to 8,146.60, 11,226.18 and 5,782.12

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Solution

The fourth proportional to 8,146.60, 11,226.18 and 5,782.12 is: 7,967.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,146.60 : 11,226.18 = 5,782.12 : x
  2. Step 2: Convert to fraction form
    8,146.60/11,226.18 = 5,782.12/x
  3. Step 3: Cross multiply
    8,146.60x = 11,226.18 × 5,782.12
  4. Step 4: Simplify right side
    8,146.60x = 64,911,119.90
  5. Step 5: Solve for x
    x = 64,911,119.90/8,146.60
  6. Step 6: Final answer
    x = 7,967.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.