Home / 11,219.60-16,812.12-4,644.56

Finding the Fourth Proportional to 11,219.60, 16,812.12 and 4,644.56

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Solution

The fourth proportional to 11,219.60, 16,812.12 and 4,644.56 is: 6,959.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.60 : 16,812.12 = 4,644.56 : x
  2. Step 2: Convert to fraction form
    11,219.60/16,812.12 = 4,644.56/x
  3. Step 3: Cross multiply
    11,219.60x = 16,812.12 × 4,644.56
  4. Step 4: Simplify right side
    11,219.60x = 78,084,900.07
  5. Step 5: Solve for x
    x = 78,084,900.07/11,219.60
  6. Step 6: Final answer
    x = 6,959.69

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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.