Home / 10,447.54-15,660.78-6,554.68

Finding the Fourth Proportional to 10,447.54, 15,660.78 and 6,554.68

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Solution

The fourth proportional to 10,447.54, 15,660.78 and 6,554.68 is: 9,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.54 : 15,660.78 = 6,554.68 : x
  2. Step 2: Convert to fraction form
    10,447.54/15,660.78 = 6,554.68/x
  3. Step 3: Cross multiply
    10,447.54x = 15,660.78 × 6,554.68
  4. Step 4: Simplify right side
    10,447.54x = 102,651,401.45
  5. Step 5: Solve for x
    x = 102,651,401.45/10,447.54
  6. Step 6: Final answer
    x = 9,825.41

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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.