Home / 13,403.27-18,484.40-8,367.95

Finding the Fourth Proportional to 13,403.27, 18,484.40 and 8,367.95

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Solution

The fourth proportional to 13,403.27, 18,484.40 and 8,367.95 is: 11,540.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.27 : 18,484.40 = 8,367.95 : x
  2. Step 2: Convert to fraction form
    13,403.27/18,484.40 = 8,367.95/x
  3. Step 3: Cross multiply
    13,403.27x = 18,484.40 × 8,367.95
  4. Step 4: Simplify right side
    13,403.27x = 154,676,534.98
  5. Step 5: Solve for x
    x = 154,676,534.98/13,403.27
  6. Step 6: Final answer
    x = 11,540.21

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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.