Home / 9,918.97-13,688.39-5,442.46

Finding the Fourth Proportional to 9,918.97, 13,688.39 and 5,442.46

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Solution

The fourth proportional to 9,918.97, 13,688.39 and 5,442.46 is: 7,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.97 : 13,688.39 = 5,442.46 : x
  2. Step 2: Convert to fraction form
    9,918.97/13,688.39 = 5,442.46/x
  3. Step 3: Cross multiply
    9,918.97x = 13,688.39 × 5,442.46
  4. Step 4: Simplify right side
    9,918.97x = 74,498,487.83
  5. Step 5: Solve for x
    x = 74,498,487.83/9,918.97
  6. Step 6: Final answer
    x = 7,510.71

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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.