Home / 15,343.28-21,173.41-8,537.15

Finding the Fourth Proportional to 15,343.28, 21,173.41 and 8,537.15

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Solution

The fourth proportional to 15,343.28, 21,173.41 and 8,537.15 is: 11,781.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.28 : 21,173.41 = 8,537.15 : x
  2. Step 2: Convert to fraction form
    15,343.28/21,173.41 = 8,537.15/x
  3. Step 3: Cross multiply
    15,343.28x = 21,173.41 × 8,537.15
  4. Step 4: Simplify right side
    15,343.28x = 180,760,577.18
  5. Step 5: Solve for x
    x = 180,760,577.18/15,343.28
  6. Step 6: Final answer
    x = 11,781.09

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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.