Home / 12,574.38-18,861.60-4,788.66

Finding the Fourth Proportional to 12,574.38, 18,861.60 and 4,788.66

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Solution

The fourth proportional to 12,574.38, 18,861.60 and 4,788.66 is: 7,183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.38 : 18,861.60 = 4,788.66 : x
  2. Step 2: Convert to fraction form
    12,574.38/18,861.60 = 4,788.66/x
  3. Step 3: Cross multiply
    12,574.38x = 18,861.60 × 4,788.66
  4. Step 4: Simplify right side
    12,574.38x = 90,321,789.46
  5. Step 5: Solve for x
    x = 90,321,789.46/12,574.38
  6. Step 6: Final answer
    x = 7,183.00

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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.