Home / 13,567.72-18,723.08-7,517.66

Finding the Fourth Proportional to 13,567.72, 18,723.08 and 7,517.66

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Solution

The fourth proportional to 13,567.72, 18,723.08 and 7,517.66 is: 10,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,567.72 : 18,723.08 = 7,517.66 : x
  2. Step 2: Convert to fraction form
    13,567.72/18,723.08 = 7,517.66/x
  3. Step 3: Cross multiply
    13,567.72x = 18,723.08 × 7,517.66
  4. Step 4: Simplify right side
    13,567.72x = 140,753,749.59
  5. Step 5: Solve for x
    x = 140,753,749.59/13,567.72
  6. Step 6: Final answer
    x = 10,374.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.