Home / 7,724.93-10,660.43-4,188.15

Finding the Fourth Proportional to 7,724.93, 10,660.43 and 4,188.15

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Solution

The fourth proportional to 7,724.93, 10,660.43 and 4,188.15 is: 5,779.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.93 : 10,660.43 = 4,188.15 : x
  2. Step 2: Convert to fraction form
    7,724.93/10,660.43 = 4,188.15/x
  3. Step 3: Cross multiply
    7,724.93x = 10,660.43 × 4,188.15
  4. Step 4: Simplify right side
    7,724.93x = 44,647,426.60
  5. Step 5: Solve for x
    x = 44,647,426.60/7,724.93
  6. Step 6: Final answer
    x = 5,779.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.