Home / 11,219.80-16,812.54-5,657.60

Finding the Fourth Proportional to 11,219.80, 16,812.54 and 5,657.60

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Solution

The fourth proportional to 11,219.80, 16,812.54 and 5,657.60 is: 8,477.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.80 : 16,812.54 = 5,657.60 : x
  2. Step 2: Convert to fraction form
    11,219.80/16,812.54 = 5,657.60/x
  3. Step 3: Cross multiply
    11,219.80x = 16,812.54 × 5,657.60
  4. Step 4: Simplify right side
    11,219.80x = 95,118,626.30
  5. Step 5: Solve for x
    x = 95,118,626.30/11,219.80
  6. Step 6: Final answer
    x = 8,477.75

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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.