Home / 9,942.78-13,721.04-5,966.28

Finding the Fourth Proportional to 9,942.78, 13,721.04 and 5,966.28

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Solution

The fourth proportional to 9,942.78, 13,721.04 and 5,966.28 is: 8,233.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,942.78 : 13,721.04 = 5,966.28 : x
  2. Step 2: Convert to fraction form
    9,942.78/13,721.04 = 5,966.28/x
  3. Step 3: Cross multiply
    9,942.78x = 13,721.04 × 5,966.28
  4. Step 4: Simplify right side
    9,942.78x = 81,863,566.53
  5. Step 5: Solve for x
    x = 81,863,566.53/9,942.78
  6. Step 6: Final answer
    x = 8,233.47

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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.