Home / 7,816.85-11,722.50-2,885.16

Finding the Fourth Proportional to 7,816.85, 11,722.50 and 2,885.16

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Solution

The fourth proportional to 7,816.85, 11,722.50 and 2,885.16 is: 4,326.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.85 : 11,722.50 = 2,885.16 : x
  2. Step 2: Convert to fraction form
    7,816.85/11,722.50 = 2,885.16/x
  3. Step 3: Cross multiply
    7,816.85x = 11,722.50 × 2,885.16
  4. Step 4: Simplify right side
    7,816.85x = 33,821,288.10
  5. Step 5: Solve for x
    x = 33,821,288.10/7,816.85
  6. Step 6: Final answer
    x = 4,326.72

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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.