Home / 7,824.40-11,737.62-2,557.57

Finding the Fourth Proportional to 7,824.40, 11,737.62 and 2,557.57

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Solution

The fourth proportional to 7,824.40, 11,737.62 and 2,557.57 is: 3,836.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824.40 : 11,737.62 = 2,557.57 : x
  2. Step 2: Convert to fraction form
    7,824.40/11,737.62 = 2,557.57/x
  3. Step 3: Cross multiply
    7,824.40x = 11,737.62 × 2,557.57
  4. Step 4: Simplify right side
    7,824.40x = 30,019,784.78
  5. Step 5: Solve for x
    x = 30,019,784.78/7,824.40
  6. Step 6: Final answer
    x = 3,836.69

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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.