Home / 13,382.11-18,464.20-8,003.51

Finding the Fourth Proportional to 13,382.11, 18,464.20 and 8,003.51

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Solution

The fourth proportional to 13,382.11, 18,464.20 and 8,003.51 is: 11,042.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.11 : 18,464.20 = 8,003.51 : x
  2. Step 2: Convert to fraction form
    13,382.11/18,464.20 = 8,003.51/x
  3. Step 3: Cross multiply
    13,382.11x = 18,464.20 × 8,003.51
  4. Step 4: Simplify right side
    13,382.11x = 147,778,411.27
  5. Step 5: Solve for x
    x = 147,778,411.27/13,382.11
  6. Step 6: Final answer
    x = 11,042.98

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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.