Home / 10,340.51-15,489.32-5,395.14

Finding the Fourth Proportional to 10,340.51, 15,489.32 and 5,395.14

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Solution

The fourth proportional to 10,340.51, 15,489.32 and 5,395.14 is: 8,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,340.51 : 15,489.32 = 5,395.14 : x
  2. Step 2: Convert to fraction form
    10,340.51/15,489.32 = 5,395.14/x
  3. Step 3: Cross multiply
    10,340.51x = 15,489.32 × 5,395.14
  4. Step 4: Simplify right side
    10,340.51x = 83,567,022.93
  5. Step 5: Solve for x
    x = 83,567,022.93/10,340.51
  6. Step 6: Final answer
    x = 8,081.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.