Home / 8,819.64-12,171.33-5,283.18

Finding the Fourth Proportional to 8,819.64, 12,171.33 and 5,283.18

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Solution

The fourth proportional to 8,819.64, 12,171.33 and 5,283.18 is: 7,290.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.64 : 12,171.33 = 5,283.18 : x
  2. Step 2: Convert to fraction form
    8,819.64/12,171.33 = 5,283.18/x
  3. Step 3: Cross multiply
    8,819.64x = 12,171.33 × 5,283.18
  4. Step 4: Simplify right side
    8,819.64x = 64,303,327.23
  5. Step 5: Solve for x
    x = 64,303,327.23/8,819.64
  6. Step 6: Final answer
    x = 7,290.92

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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.