Home / 13,402.16-20,103.44-6,382.96

Finding the Fourth Proportional to 13,402.16, 20,103.44 and 6,382.96

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Solution

The fourth proportional to 13,402.16, 20,103.44 and 6,382.96 is: 9,574.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.16 : 20,103.44 = 6,382.96 : x
  2. Step 2: Convert to fraction form
    13,402.16/20,103.44 = 6,382.96/x
  3. Step 3: Cross multiply
    13,402.16x = 20,103.44 × 6,382.96
  4. Step 4: Simplify right side
    13,402.16x = 128,319,453.38
  5. Step 5: Solve for x
    x = 128,319,453.38/13,402.16
  6. Step 6: Final answer
    x = 9,574.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.