Home / 8,590.08-11,878.17-6,818.61

Finding the Fourth Proportional to 8,590.08, 11,878.17 and 6,818.61

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Solution

The fourth proportional to 8,590.08, 11,878.17 and 6,818.61 is: 9,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.08 : 11,878.17 = 6,818.61 : x
  2. Step 2: Convert to fraction form
    8,590.08/11,878.17 = 6,818.61/x
  3. Step 3: Cross multiply
    8,590.08x = 11,878.17 × 6,818.61
  4. Step 4: Simplify right side
    8,590.08x = 80,992,608.74
  5. Step 5: Solve for x
    x = 80,992,608.74/8,590.08
  6. Step 6: Final answer
    x = 9,428.62

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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.