Home / 10,620.80-15,917.36-4,996.56

Finding the Fourth Proportional to 10,620.80, 15,917.36 and 4,996.56

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Solution

The fourth proportional to 10,620.80, 15,917.36 and 4,996.56 is: 7,488.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.80 : 15,917.36 = 4,996.56 : x
  2. Step 2: Convert to fraction form
    10,620.80/15,917.36 = 4,996.56/x
  3. Step 3: Cross multiply
    10,620.80x = 15,917.36 × 4,996.56
  4. Step 4: Simplify right side
    10,620.80x = 79,532,044.28
  5. Step 5: Solve for x
    x = 79,532,044.28/10,620.80
  6. Step 6: Final answer
    x = 7,488.33

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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.