Home / 8,819.29-12,170.39-4,840.77

Finding the Fourth Proportional to 8,819.29, 12,170.39 and 4,840.77

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Solution

The fourth proportional to 8,819.29, 12,170.39 and 4,840.77 is: 6,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.29 : 12,170.39 = 4,840.77 : x
  2. Step 2: Convert to fraction form
    8,819.29/12,170.39 = 4,840.77/x
  3. Step 3: Cross multiply
    8,819.29x = 12,170.39 × 4,840.77
  4. Step 4: Simplify right side
    8,819.29x = 58,914,080.24
  5. Step 5: Solve for x
    x = 58,914,080.24/8,819.29
  6. Step 6: Final answer
    x = 6,680.14

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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.