Home / 7,816.94-11,727.60-3,140.23

Finding the Fourth Proportional to 7,816.94, 11,727.60 and 3,140.23

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Solution

The fourth proportional to 7,816.94, 11,727.60 and 3,140.23 is: 4,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.94 : 11,727.60 = 3,140.23 : x
  2. Step 2: Convert to fraction form
    7,816.94/11,727.60 = 3,140.23/x
  3. Step 3: Cross multiply
    7,816.94x = 11,727.60 × 3,140.23
  4. Step 4: Simplify right side
    7,816.94x = 36,827,369.20
  5. Step 5: Solve for x
    x = 36,827,369.20/7,816.94
  6. Step 6: Final answer
    x = 4,711.23

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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.