Home / 15,196.24-20,954.28-9,881.20

Finding the Fourth Proportional to 15,196.24, 20,954.28 and 9,881.20

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Solution

The fourth proportional to 15,196.24, 20,954.28 and 9,881.20 is: 13,625.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196.24 : 20,954.28 = 9,881.20 : x
  2. Step 2: Convert to fraction form
    15,196.24/20,954.28 = 9,881.20/x
  3. Step 3: Cross multiply
    15,196.24x = 20,954.28 × 9,881.20
  4. Step 4: Simplify right side
    15,196.24x = 207,053,431.54
  5. Step 5: Solve for x
    x = 207,053,431.54/15,196.24
  6. Step 6: Final answer
    x = 13,625.31

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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.