Home / 13,384.96-20,081.60-6,458.24

Finding the Fourth Proportional to 13,384.96, 20,081.60 and 6,458.24

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Solution

The fourth proportional to 13,384.96, 20,081.60 and 6,458.24 is: 9,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.96 : 20,081.60 = 6,458.24 : x
  2. Step 2: Convert to fraction form
    13,384.96/20,081.60 = 6,458.24/x
  3. Step 3: Cross multiply
    13,384.96x = 20,081.60 × 6,458.24
  4. Step 4: Simplify right side
    13,384.96x = 129,691,792.38
  5. Step 5: Solve for x
    x = 129,691,792.38/13,384.96
  6. Step 6: Final answer
    x = 9,689.37

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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.