Home / 15,434.64-23,137.36-5,571.28

Finding the Fourth Proportional to 15,434.64, 23,137.36 and 5,571.28

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Solution

The fourth proportional to 15,434.64, 23,137.36 and 5,571.28 is: 8,351.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,434.64 : 23,137.36 = 5,571.28 : x
  2. Step 2: Convert to fraction form
    15,434.64/23,137.36 = 5,571.28/x
  3. Step 3: Cross multiply
    15,434.64x = 23,137.36 × 5,571.28
  4. Step 4: Simplify right side
    15,434.64x = 128,904,711.02
  5. Step 5: Solve for x
    x = 128,904,711.02/15,434.64
  6. Step 6: Final answer
    x = 8,351.65

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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.