Home / 15,612.23-21,551.90-9,954.56

Finding the Fourth Proportional to 15,612.23, 21,551.90 and 9,954.56

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Solution

The fourth proportional to 15,612.23, 21,551.90 and 9,954.56 is: 13,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,612.23 : 21,551.90 = 9,954.56 : x
  2. Step 2: Convert to fraction form
    15,612.23/21,551.90 = 9,954.56/x
  3. Step 3: Cross multiply
    15,612.23x = 21,551.90 × 9,954.56
  4. Step 4: Simplify right side
    15,612.23x = 214,539,760.43
  5. Step 5: Solve for x
    x = 214,539,760.43/15,612.23
  6. Step 6: Final answer
    x = 13,741.78

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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.