Home / 12,785.16-19,171.08-8,625

Finding the Fourth Proportional to 12,785.16, 19,171.08 and 8,625

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Solution

The fourth proportional to 12,785.16, 19,171.08 and 8,625 is: 12,933.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.16 : 19,171.08 = 8,625 : x
  2. Step 2: Convert to fraction form
    12,785.16/19,171.08 = 8,625/x
  3. Step 3: Cross multiply
    12,785.16x = 19,171.08 × 8,625
  4. Step 4: Simplify right side
    12,785.16x = 165,350,565.00
  5. Step 5: Solve for x
    x = 165,350,565.00/12,785.16
  6. Step 6: Final answer
    x = 12,933.01

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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.