Home / 15,411.78-23,103.79-5,544.13

Finding the Fourth Proportional to 15,411.78, 23,103.79 and 5,544.13

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Solution

The fourth proportional to 15,411.78, 23,103.79 and 5,544.13 is: 8,311.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.78 : 23,103.79 = 5,544.13 : x
  2. Step 2: Convert to fraction form
    15,411.78/23,103.79 = 5,544.13/x
  3. Step 3: Cross multiply
    15,411.78x = 23,103.79 × 5,544.13
  4. Step 4: Simplify right side
    15,411.78x = 128,090,415.25
  5. Step 5: Solve for x
    x = 128,090,415.25/15,411.78
  6. Step 6: Final answer
    x = 8,311.20

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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.