Home / 9,918.60-13,687.81-5,442.27

Finding the Fourth Proportional to 9,918.60, 13,687.81 and 5,442.27

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Solution

The fourth proportional to 9,918.60, 13,687.81 and 5,442.27 is: 7,510.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.60 : 13,687.81 = 5,442.27 : x
  2. Step 2: Convert to fraction form
    9,918.60/13,687.81 = 5,442.27/x
  3. Step 3: Cross multiply
    9,918.60x = 13,687.81 × 5,442.27
  4. Step 4: Simplify right side
    9,918.60x = 74,492,757.73
  5. Step 5: Solve for x
    x = 74,492,757.73/9,918.60
  6. Step 6: Final answer
    x = 7,510.41

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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.