Home / 10,963.20-16,401.60-9,518.40

Finding the Fourth Proportional to 10,963.20, 16,401.60 and 9,518.40

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Solution

The fourth proportional to 10,963.20, 16,401.60 and 9,518.40 is: 14,240.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.20 : 16,401.60 = 9,518.40 : x
  2. Step 2: Convert to fraction form
    10,963.20/16,401.60 = 9,518.40/x
  3. Step 3: Cross multiply
    10,963.20x = 16,401.60 × 9,518.40
  4. Step 4: Simplify right side
    10,963.20x = 156,116,989.44
  5. Step 5: Solve for x
    x = 156,116,989.44/10,963.20
  6. Step 6: Final answer
    x = 14,240.09

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1.5x scale

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.