Home / 9,918.47-13,687.70-5,441.96

Finding the Fourth Proportional to 9,918.47, 13,687.70 and 5,441.96

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Solution

The fourth proportional to 9,918.47, 13,687.70 and 5,441.96 is: 7,510.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,918.47 : 13,687.70 = 5,441.96 : x
  2. Step 2: Convert to fraction form
    9,918.47/13,687.70 = 5,441.96/x
  3. Step 3: Cross multiply
    9,918.47x = 13,687.70 × 5,441.96
  4. Step 4: Simplify right side
    9,918.47x = 74,487,888.68
  5. Step 5: Solve for x
    x = 74,487,888.68/9,918.47
  6. Step 6: Final answer
    x = 7,510.02

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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.