Home / 13,207.32-18,229.33-8,965.45

Finding the Fourth Proportional to 13,207.32, 18,229.33 and 8,965.45

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Solution

The fourth proportional to 13,207.32, 18,229.33 and 8,965.45 is: 12,374.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.32 : 18,229.33 = 8,965.45 : x
  2. Step 2: Convert to fraction form
    13,207.32/18,229.33 = 8,965.45/x
  3. Step 3: Cross multiply
    13,207.32x = 18,229.33 × 8,965.45
  4. Step 4: Simplify right side
    13,207.32x = 163,434,078.52
  5. Step 5: Solve for x
    x = 163,434,078.52/13,207.32
  6. Step 6: Final answer
    x = 12,374.51

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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.