Home / 15,336.38-21,164.54-9,371.34

Finding the Fourth Proportional to 15,336.38, 21,164.54 and 9,371.34

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Solution

The fourth proportional to 15,336.38, 21,164.54 and 9,371.34 is: 12,932.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.38 : 21,164.54 = 9,371.34 : x
  2. Step 2: Convert to fraction form
    15,336.38/21,164.54 = 9,371.34/x
  3. Step 3: Cross multiply
    15,336.38x = 21,164.54 × 9,371.34
  4. Step 4: Simplify right side
    15,336.38x = 198,340,100.28
  5. Step 5: Solve for x
    x = 198,340,100.28/15,336.38
  6. Step 6: Final answer
    x = 12,932.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.