Home / 13,636.22-20,442.01-9,478.18

Finding the Fourth Proportional to 13,636.22, 20,442.01 and 9,478.18

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Solution

The fourth proportional to 13,636.22, 20,442.01 and 9,478.18 is: 14,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,636.22 : 20,442.01 = 9,478.18 : x
  2. Step 2: Convert to fraction form
    13,636.22/20,442.01 = 9,478.18/x
  3. Step 3: Cross multiply
    13,636.22x = 20,442.01 × 9,478.18
  4. Step 4: Simplify right side
    13,636.22x = 193,753,050.34
  5. Step 5: Solve for x
    x = 193,753,050.34/13,636.22
  6. Step 6: Final answer
    x = 14,208.71

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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.