Home / 6,999.20-10,500.60-2,616.68

Finding the Fourth Proportional to 6,999.20, 10,500.60 and 2,616.68

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Solution

The fourth proportional to 6,999.20, 10,500.60 and 2,616.68 is: 3,925.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.20 : 10,500.60 = 2,616.68 : x
  2. Step 2: Convert to fraction form
    6,999.20/10,500.60 = 2,616.68/x
  3. Step 3: Cross multiply
    6,999.20x = 10,500.60 × 2,616.68
  4. Step 4: Simplify right side
    6,999.20x = 27,476,710.01
  5. Step 5: Solve for x
    x = 27,476,710.01/6,999.20
  6. Step 6: Final answer
    x = 3,925.69

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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.