Home / 7,340.80-11,024.40-6,433.60

Finding the Fourth Proportional to 7,340.80, 11,024.40 and 6,433.60

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Solution

The fourth proportional to 7,340.80, 11,024.40 and 6,433.60 is: 9,661.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,340.80 : 11,024.40 = 6,433.60 : x
  2. Step 2: Convert to fraction form
    7,340.80/11,024.40 = 6,433.60/x
  3. Step 3: Cross multiply
    7,340.80x = 11,024.40 × 6,433.60
  4. Step 4: Simplify right side
    7,340.80x = 70,926,579.84
  5. Step 5: Solve for x
    x = 70,926,579.84/7,340.80
  6. Step 6: Final answer
    x = 9,661.97

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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.