Home / 7,812.47-11,718.36-2,265.69

Finding the Fourth Proportional to 7,812.47, 11,718.36 and 2,265.69

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Solution

The fourth proportional to 7,812.47, 11,718.36 and 2,265.69 is: 3,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,812.47 : 11,718.36 = 2,265.69 : x
  2. Step 2: Convert to fraction form
    7,812.47/11,718.36 = 2,265.69/x
  3. Step 3: Cross multiply
    7,812.47x = 11,718.36 × 2,265.69
  4. Step 4: Simplify right side
    7,812.47x = 26,550,171.07
  5. Step 5: Solve for x
    x = 26,550,171.07/7,812.47
  6. Step 6: Final answer
    x = 3,398.43

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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.