Home / 15,447.68-21,318.31-8,548.93

Finding the Fourth Proportional to 15,447.68, 21,318.31 and 8,548.93

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Solution

The fourth proportional to 15,447.68, 21,318.31 and 8,548.93 is: 11,797.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.68 : 21,318.31 = 8,548.93 : x
  2. Step 2: Convert to fraction form
    15,447.68/21,318.31 = 8,548.93/x
  3. Step 3: Cross multiply
    15,447.68x = 21,318.31 × 8,548.93
  4. Step 4: Simplify right side
    15,447.68x = 182,248,609.24
  5. Step 5: Solve for x
    x = 182,248,609.24/15,447.68
  6. Step 6: Final answer
    x = 11,797.79

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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.