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Finding the Fourth Proportional to 12,570.36, 18,833.04 and 8,397.73

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Solution

The fourth proportional to 12,570.36, 18,833.04 and 8,397.73 is: 12,581.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.36 : 18,833.04 = 8,397.73 : x
  2. Step 2: Convert to fraction form
    12,570.36/18,833.04 = 8,397.73/x
  3. Step 3: Cross multiply
    12,570.36x = 18,833.04 × 8,397.73
  4. Step 4: Simplify right side
    12,570.36x = 158,154,785.00
  5. Step 5: Solve for x
    x = 158,154,785.00/12,570.36
  6. Step 6: Final answer
    x = 12,581.56

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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.