Home / 6,651.20-9,962.40-5,921.60

Finding the Fourth Proportional to 6,651.20, 9,962.40 and 5,921.60

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Solution

The fourth proportional to 6,651.20, 9,962.40 and 5,921.60 is: 8,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.20 : 9,962.40 = 5,921.60 : x
  2. Step 2: Convert to fraction form
    6,651.20/9,962.40 = 5,921.60/x
  3. Step 3: Cross multiply
    6,651.20x = 9,962.40 × 5,921.60
  4. Step 4: Simplify right side
    6,651.20x = 58,993,347.84
  5. Step 5: Solve for x
    x = 58,993,347.84/6,651.20
  6. Step 6: Final answer
    x = 8,869.58

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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.