Home / 15,164.11-20,921.39-9,497.05

Finding the Fourth Proportional to 15,164.11, 20,921.39 and 9,497.05

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Solution

The fourth proportional to 15,164.11, 20,921.39 and 9,497.05 is: 13,102.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,164.11 : 20,921.39 = 9,497.05 : x
  2. Step 2: Convert to fraction form
    15,164.11/20,921.39 = 9,497.05/x
  3. Step 3: Cross multiply
    15,164.11x = 20,921.39 × 9,497.05
  4. Step 4: Simplify right side
    15,164.11x = 198,691,422.72
  5. Step 5: Solve for x
    x = 198,691,422.72/15,164.11
  6. Step 6: Final answer
    x = 13,102.74

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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.