Home / 15,845.72-21,863.40-9,474.38

Finding the Fourth Proportional to 15,845.72, 21,863.40 and 9,474.38

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Solution

The fourth proportional to 15,845.72, 21,863.40 and 9,474.38 is: 13,072.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,845.72 : 21,863.40 = 9,474.38 : x
  2. Step 2: Convert to fraction form
    15,845.72/21,863.40 = 9,474.38/x
  3. Step 3: Cross multiply
    15,845.72x = 21,863.40 × 9,474.38
  4. Step 4: Simplify right side
    15,845.72x = 207,142,159.69
  5. Step 5: Solve for x
    x = 207,142,159.69/15,845.72
  6. Step 6: Final answer
    x = 13,072.44

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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.