Home / 8,605.08-12,909.60-2,681.69

Finding the Fourth Proportional to 8,605.08, 12,909.60 and 2,681.69

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Solution

The fourth proportional to 8,605.08, 12,909.60 and 2,681.69 is: 4,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.08 : 12,909.60 = 2,681.69 : x
  2. Step 2: Convert to fraction form
    8,605.08/12,909.60 = 2,681.69/x
  3. Step 3: Cross multiply
    8,605.08x = 12,909.60 × 2,681.69
  4. Step 4: Simplify right side
    8,605.08x = 34,619,480.68
  5. Step 5: Solve for x
    x = 34,619,480.68/8,605.08
  6. Step 6: Final answer
    x = 4,023.14

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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.