Home / 7,523.78-10,376.52-5,639.80

Finding the Fourth Proportional to 7,523.78, 10,376.52 and 5,639.80

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Solution

The fourth proportional to 7,523.78, 10,376.52 and 5,639.80 is: 7,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,523.78 : 10,376.52 = 5,639.80 : x
  2. Step 2: Convert to fraction form
    7,523.78/10,376.52 = 5,639.80/x
  3. Step 3: Cross multiply
    7,523.78x = 10,376.52 × 5,639.80
  4. Step 4: Simplify right side
    7,523.78x = 58,521,497.50
  5. Step 5: Solve for x
    x = 58,521,497.50/7,523.78
  6. Step 6: Final answer
    x = 7,778.20

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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.