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Finding the Fourth Proportional to 8,808.60, 12,156.43 and 5,819.19

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Solution

The fourth proportional to 8,808.60, 12,156.43 and 5,819.19 is: 8,030.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808.60 : 12,156.43 = 5,819.19 : x
  2. Step 2: Convert to fraction form
    8,808.60/12,156.43 = 5,819.19/x
  3. Step 3: Cross multiply
    8,808.60x = 12,156.43 × 5,819.19
  4. Step 4: Simplify right side
    8,808.60x = 70,740,575.89
  5. Step 5: Solve for x
    x = 70,740,575.89/8,808.60
  6. Step 6: Final answer
    x = 8,030.85

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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.