Home / 10,645.74-15,968.61-4,800.78

Finding the Fourth Proportional to 10,645.74, 15,968.61 and 4,800.78

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Solution

The fourth proportional to 10,645.74, 15,968.61 and 4,800.78 is: 7,201.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.74 : 15,968.61 = 4,800.78 : x
  2. Step 2: Convert to fraction form
    10,645.74/15,968.61 = 4,800.78/x
  3. Step 3: Cross multiply
    10,645.74x = 15,968.61 × 4,800.78
  4. Step 4: Simplify right side
    10,645.74x = 76,661,783.52
  5. Step 5: Solve for x
    x = 76,661,783.52/10,645.74
  6. Step 6: Final answer
    x = 7,201.17

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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.