Home / 13,465.23-20,197.85-6,443.59

Finding the Fourth Proportional to 13,465.23, 20,197.85 and 6,443.59

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Solution

The fourth proportional to 13,465.23, 20,197.85 and 6,443.59 is: 9,665.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.23 : 20,197.85 = 6,443.59 : x
  2. Step 2: Convert to fraction form
    13,465.23/20,197.85 = 6,443.59/x
  3. Step 3: Cross multiply
    13,465.23x = 20,197.85 × 6,443.59
  4. Step 4: Simplify right side
    13,465.23x = 130,146,664.28
  5. Step 5: Solve for x
    x = 130,146,664.28/13,465.23
  6. Step 6: Final answer
    x = 9,665.39

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Similar ratio
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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.