Home / 7,923.86-11,871.12-5,727.14

Finding the Fourth Proportional to 7,923.86, 11,871.12 and 5,727.14

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Solution

The fourth proportional to 7,923.86, 11,871.12 and 5,727.14 is: 8,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,923.86 : 11,871.12 = 5,727.14 : x
  2. Step 2: Convert to fraction form
    7,923.86/11,871.12 = 5,727.14/x
  3. Step 3: Cross multiply
    7,923.86x = 11,871.12 × 5,727.14
  4. Step 4: Simplify right side
    7,923.86x = 67,987,566.20
  5. Step 5: Solve for x
    x = 67,987,566.20/7,923.86
  6. Step 6: Final answer
    x = 8,580.11

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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.