Home / 8,819.34-12,171-4,840.56

Finding the Fourth Proportional to 8,819.34, 12,171 and 4,840.56

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Solution

The fourth proportional to 8,819.34, 12,171 and 4,840.56 is: 6,680.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.34 : 12,171 = 4,840.56 : x
  2. Step 2: Convert to fraction form
    8,819.34/12,171 = 4,840.56/x
  3. Step 3: Cross multiply
    8,819.34x = 12,171 × 4,840.56
  4. Step 4: Simplify right side
    8,819.34x = 58,914,455.76
  5. Step 5: Solve for x
    x = 58,914,455.76/8,819.34
  6. Step 6: Final answer
    x = 6,680.14

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Half scale
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Double scale
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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.