Home / 11,153.60-16,711.20-5,297.60

Finding the Fourth Proportional to 11,153.60, 16,711.20 and 5,297.60

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Solution

The fourth proportional to 11,153.60, 16,711.20 and 5,297.60 is: 7,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.60 : 16,711.20 = 5,297.60 : x
  2. Step 2: Convert to fraction form
    11,153.60/16,711.20 = 5,297.60/x
  3. Step 3: Cross multiply
    11,153.60x = 16,711.20 × 5,297.60
  4. Step 4: Simplify right side
    11,153.60x = 88,529,253.12
  5. Step 5: Solve for x
    x = 88,529,253.12/11,153.60
  6. Step 6: Final answer
    x = 7,937.28

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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.