Home / 15,903.76-23,859.48-5,515.28

Finding the Fourth Proportional to 15,903.76, 23,859.48 and 5,515.28

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Solution

The fourth proportional to 15,903.76, 23,859.48 and 5,515.28 is: 8,274.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.76 : 23,859.48 = 5,515.28 : x
  2. Step 2: Convert to fraction form
    15,903.76/23,859.48 = 5,515.28/x
  3. Step 3: Cross multiply
    15,903.76x = 23,859.48 × 5,515.28
  4. Step 4: Simplify right side
    15,903.76x = 131,591,712.85
  5. Step 5: Solve for x
    x = 131,591,712.85/15,903.76
  6. Step 6: Final answer
    x = 8,274.25

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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.