Home / 8,819.07-12,170.61-4,840.40

Finding the Fourth Proportional to 8,819.07, 12,170.61 and 4,840.40

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Solution

The fourth proportional to 8,819.07, 12,170.61 and 4,840.40 is: 6,679.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.07 : 12,170.61 = 4,840.40 : x
  2. Step 2: Convert to fraction form
    8,819.07/12,170.61 = 4,840.40/x
  3. Step 3: Cross multiply
    8,819.07x = 12,170.61 × 4,840.40
  4. Step 4: Simplify right side
    8,819.07x = 58,910,620.64
  5. Step 5: Solve for x
    x = 58,910,620.64/8,819.07
  6. Step 6: Final answer
    x = 6,679.91

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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.