Home / 7,675.88-11,515.26-5,313.92

Finding the Fourth Proportional to 7,675.88, 11,515.26 and 5,313.92

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Solution

The fourth proportional to 7,675.88, 11,515.26 and 5,313.92 is: 7,971.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.88 : 11,515.26 = 5,313.92 : x
  2. Step 2: Convert to fraction form
    7,675.88/11,515.26 = 5,313.92/x
  3. Step 3: Cross multiply
    7,675.88x = 11,515.26 × 5,313.92
  4. Step 4: Simplify right side
    7,675.88x = 61,191,170.42
  5. Step 5: Solve for x
    x = 61,191,170.42/7,675.88
  6. Step 6: Final answer
    x = 7,971.88

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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.