Home / 15,360.20-21,196.26-8,645.96

Finding the Fourth Proportional to 15,360.20, 21,196.26 and 8,645.96

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Solution

The fourth proportional to 15,360.20, 21,196.26 and 8,645.96 is: 11,930.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,360.20 : 21,196.26 = 8,645.96 : x
  2. Step 2: Convert to fraction form
    15,360.20/21,196.26 = 8,645.96/x
  3. Step 3: Cross multiply
    15,360.20x = 21,196.26 × 8,645.96
  4. Step 4: Simplify right side
    15,360.20x = 183,262,016.11
  5. Step 5: Solve for x
    x = 183,262,016.11/15,360.20
  6. Step 6: Final answer
    x = 11,930.97

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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.