Home / 15,341.27-21,171.56-8,626.86

Finding the Fourth Proportional to 15,341.27, 21,171.56 and 8,626.86

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Solution

The fourth proportional to 15,341.27, 21,171.56 and 8,626.86 is: 11,905.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.27 : 21,171.56 = 8,626.86 : x
  2. Step 2: Convert to fraction form
    15,341.27/21,171.56 = 8,626.86/x
  3. Step 3: Cross multiply
    15,341.27x = 21,171.56 × 8,626.86
  4. Step 4: Simplify right side
    15,341.27x = 182,644,040.97
  5. Step 5: Solve for x
    x = 182,644,040.97/15,341.27
  6. Step 6: Final answer
    x = 11,905.41

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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.