Home / 8,218.08-12,339.42-6,569.76

Finding the Fourth Proportional to 8,218.08, 12,339.42 and 6,569.76

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Solution

The fourth proportional to 8,218.08, 12,339.42 and 6,569.76 is: 9,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.08 : 12,339.42 = 6,569.76 : x
  2. Step 2: Convert to fraction form
    8,218.08/12,339.42 = 6,569.76/x
  3. Step 3: Cross multiply
    8,218.08x = 12,339.42 × 6,569.76
  4. Step 4: Simplify right side
    8,218.08x = 81,067,027.94
  5. Step 5: Solve for x
    x = 81,067,027.94/8,218.08
  6. Step 6: Final answer
    x = 9,864.47

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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.