Home / 13,292.78-18,344.84-7,324.44

Finding the Fourth Proportional to 13,292.78, 18,344.84 and 7,324.44

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Solution

The fourth proportional to 13,292.78, 18,344.84 and 7,324.44 is: 10,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.78 : 18,344.84 = 7,324.44 : x
  2. Step 2: Convert to fraction form
    13,292.78/18,344.84 = 7,324.44/x
  3. Step 3: Cross multiply
    13,292.78x = 18,344.84 × 7,324.44
  4. Step 4: Simplify right side
    13,292.78x = 134,365,574.47
  5. Step 5: Solve for x
    x = 134,365,574.47/13,292.78
  6. Step 6: Final answer
    x = 10,108.17

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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.