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Finding the Fourth Proportional to 8,567.34, 12,825.09 and 7,919.34

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Solution

The fourth proportional to 8,567.34, 12,825.09 and 7,919.34 is: 11,855.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,567.34 : 12,825.09 = 7,919.34 : x
  2. Step 2: Convert to fraction form
    8,567.34/12,825.09 = 7,919.34/x
  3. Step 3: Cross multiply
    8,567.34x = 12,825.09 × 7,919.34
  4. Step 4: Simplify right side
    8,567.34x = 101,566,248.24
  5. Step 5: Solve for x
    x = 101,566,248.24/8,567.34
  6. Step 6: Final answer
    x = 11,855.05

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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.