Home / 15,343.56-21,175.20-9,057.96

Finding the Fourth Proportional to 15,343.56, 21,175.20 and 9,057.96

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Solution

The fourth proportional to 15,343.56, 21,175.20 and 9,057.96 is: 12,500.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,343.56 : 21,175.20 = 9,057.96 : x
  2. Step 2: Convert to fraction form
    15,343.56/21,175.20 = 9,057.96/x
  3. Step 3: Cross multiply
    15,343.56x = 21,175.20 × 9,057.96
  4. Step 4: Simplify right side
    15,343.56x = 191,804,114.59
  5. Step 5: Solve for x
    x = 191,804,114.59/15,343.56
  6. Step 6: Final answer
    x = 12,500.63

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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.