Home / 10,401.40-15,602.10-8,554.60

Finding the Fourth Proportional to 10,401.40, 15,602.10 and 8,554.60

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Solution

The fourth proportional to 10,401.40, 15,602.10 and 8,554.60 is: 12,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,401.40 : 15,602.10 = 8,554.60 : x
  2. Step 2: Convert to fraction form
    10,401.40/15,602.10 = 8,554.60/x
  3. Step 3: Cross multiply
    10,401.40x = 15,602.10 × 8,554.60
  4. Step 4: Simplify right side
    10,401.40x = 133,469,724.66
  5. Step 5: Solve for x
    x = 133,469,724.66/10,401.40
  6. Step 6: Final answer
    x = 12,831.90

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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.