Home / 15,300.76-21,117.26-8,496.36

Finding the Fourth Proportional to 15,300.76, 21,117.26 and 8,496.36

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Solution

The fourth proportional to 15,300.76, 21,117.26 and 8,496.36 is: 11,726.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,300.76 : 21,117.26 = 8,496.36 : x
  2. Step 2: Convert to fraction form
    15,300.76/21,117.26 = 8,496.36/x
  3. Step 3: Cross multiply
    15,300.76x = 21,117.26 × 8,496.36
  4. Step 4: Simplify right side
    15,300.76x = 179,419,843.17
  5. Step 5: Solve for x
    x = 179,419,843.17/15,300.76
  6. Step 6: Final answer
    x = 11,726.20

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Double scale
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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.