Home / 7,895.72-11,817.86-5,814.90

Finding the Fourth Proportional to 7,895.72, 11,817.86 and 5,814.90

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Solution

The fourth proportional to 7,895.72, 11,817.86 and 5,814.90 is: 8,703.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,895.72 : 11,817.86 = 5,814.90 : x
  2. Step 2: Convert to fraction form
    7,895.72/11,817.86 = 5,814.90/x
  3. Step 3: Cross multiply
    7,895.72x = 11,817.86 × 5,814.90
  4. Step 4: Simplify right side
    7,895.72x = 68,719,645.04
  5. Step 5: Solve for x
    x = 68,719,645.04/7,895.72
  6. Step 6: Final answer
    x = 8,703.41

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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.