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Finding the Fourth Proportional to 8,208.96, 12,314.88 and 3,590.88

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Solution

The fourth proportional to 8,208.96, 12,314.88 and 3,590.88 is: 5,386.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.96 : 12,314.88 = 3,590.88 : x
  2. Step 2: Convert to fraction form
    8,208.96/12,314.88 = 3,590.88/x
  3. Step 3: Cross multiply
    8,208.96x = 12,314.88 × 3,590.88
  4. Step 4: Simplify right side
    8,208.96x = 44,221,256.29
  5. Step 5: Solve for x
    x = 44,221,256.29/8,208.96
  6. Step 6: Final answer
    x = 5,386.95

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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.