Home / 7,782.22-11,656.17-6,432.69

Finding the Fourth Proportional to 7,782.22, 11,656.17 and 6,432.69

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Solution

The fourth proportional to 7,782.22, 11,656.17 and 6,432.69 is: 9,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.22 : 11,656.17 = 6,432.69 : x
  2. Step 2: Convert to fraction form
    7,782.22/11,656.17 = 6,432.69/x
  3. Step 3: Cross multiply
    7,782.22x = 11,656.17 × 6,432.69
  4. Step 4: Simplify right side
    7,782.22x = 74,980,528.20
  5. Step 5: Solve for x
    x = 74,980,528.20/7,782.22
  6. Step 6: Final answer
    x = 9,634.85

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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.