Home / 7,424.85-11,139.32-6,608.82

Finding the Fourth Proportional to 7,424.85, 11,139.32 and 6,608.82

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Solution

The fourth proportional to 7,424.85, 11,139.32 and 6,608.82 is: 9,915.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,424.85 : 11,139.32 = 6,608.82 : x
  2. Step 2: Convert to fraction form
    7,424.85/11,139.32 = 6,608.82/x
  3. Step 3: Cross multiply
    7,424.85x = 11,139.32 × 6,608.82
  4. Step 4: Simplify right side
    7,424.85x = 73,617,727.76
  5. Step 5: Solve for x
    x = 73,617,727.76/7,424.85
  6. Step 6: Final answer
    x = 9,915.05

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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.