Home / 13,403.12-18,484.19-8,367.80

Finding the Fourth Proportional to 13,403.12, 18,484.19 and 8,367.80

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Solution

The fourth proportional to 13,403.12, 18,484.19 and 8,367.80 is: 11,540.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.12 : 18,484.19 = 8,367.80 : x
  2. Step 2: Convert to fraction form
    13,403.12/18,484.19 = 8,367.80/x
  3. Step 3: Cross multiply
    13,403.12x = 18,484.19 × 8,367.80
  4. Step 4: Simplify right side
    13,403.12x = 154,671,902.20
  5. Step 5: Solve for x
    x = 154,671,902.20/13,403.12
  6. Step 6: Final answer
    x = 11,540.00

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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.