Home / 6,612.12-9,112.74-6,422.58

Finding the Fourth Proportional to 6,612.12, 9,112.74 and 6,422.58

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Solution

The fourth proportional to 6,612.12, 9,112.74 and 6,422.58 is: 8,851.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,612.12 : 9,112.74 = 6,422.58 : x
  2. Step 2: Convert to fraction form
    6,612.12/9,112.74 = 6,422.58/x
  3. Step 3: Cross multiply
    6,612.12x = 9,112.74 × 6,422.58
  4. Step 4: Simplify right side
    6,612.12x = 58,527,301.67
  5. Step 5: Solve for x
    x = 58,527,301.67/6,612.12
  6. Step 6: Final answer
    x = 8,851.52

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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.