Home / 13,531.72-18,656.78-10,348.92

Finding the Fourth Proportional to 13,531.72, 18,656.78 and 10,348.92

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Solution

The fourth proportional to 13,531.72, 18,656.78 and 10,348.92 is: 14,268.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.72 : 18,656.78 = 10,348.92 : x
  2. Step 2: Convert to fraction form
    13,531.72/18,656.78 = 10,348.92/x
  3. Step 3: Cross multiply
    13,531.72x = 18,656.78 × 10,348.92
  4. Step 4: Simplify right side
    13,531.72x = 193,077,523.68
  5. Step 5: Solve for x
    x = 193,077,523.68/13,531.72
  6. Step 6: Final answer
    x = 14,268.51

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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.