Home / 9,966.20-14,949.30-8,338.10

Finding the Fourth Proportional to 9,966.20, 14,949.30 and 8,338.10

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Solution

The fourth proportional to 9,966.20, 14,949.30 and 8,338.10 is: 12,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.20 : 14,949.30 = 8,338.10 : x
  2. Step 2: Convert to fraction form
    9,966.20/14,949.30 = 8,338.10/x
  3. Step 3: Cross multiply
    9,966.20x = 14,949.30 × 8,338.10
  4. Step 4: Simplify right side
    9,966.20x = 124,648,758.33
  5. Step 5: Solve for x
    x = 124,648,758.33/9,966.20
  6. Step 6: Final answer
    x = 12,507.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.