Home / 13,403.40-20,092.08-6,371.32

Finding the Fourth Proportional to 13,403.40, 20,092.08 and 6,371.32

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Solution

The fourth proportional to 13,403.40, 20,092.08 and 6,371.32 is: 9,550.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.40 : 20,092.08 = 6,371.32 : x
  2. Step 2: Convert to fraction form
    13,403.40/20,092.08 = 6,371.32/x
  3. Step 3: Cross multiply
    13,403.40x = 20,092.08 × 6,371.32
  4. Step 4: Simplify right side
    13,403.40x = 128,013,071.15
  5. Step 5: Solve for x
    x = 128,013,071.15/13,403.40
  6. Step 6: Final answer
    x = 9,550.79

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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.