Home / 8,656.08-12,967.80-4,268.40

Finding the Fourth Proportional to 8,656.08, 12,967.80 and 4,268.40

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Solution

The fourth proportional to 8,656.08, 12,967.80 and 4,268.40 is: 6,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.08 : 12,967.80 = 4,268.40 : x
  2. Step 2: Convert to fraction form
    8,656.08/12,967.80 = 4,268.40/x
  3. Step 3: Cross multiply
    8,656.08x = 12,967.80 × 4,268.40
  4. Step 4: Simplify right side
    8,656.08x = 55,351,757.52
  5. Step 5: Solve for x
    x = 55,351,757.52/8,656.08
  6. Step 6: Final answer
    x = 6,394.55

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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.