Home / 7,515.64-11,277.94-4,186.68

Finding the Fourth Proportional to 7,515.64, 11,277.94 and 4,186.68

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Solution

The fourth proportional to 7,515.64, 11,277.94 and 4,186.68 is: 6,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.64 : 11,277.94 = 4,186.68 : x
  2. Step 2: Convert to fraction form
    7,515.64/11,277.94 = 4,186.68/x
  3. Step 3: Cross multiply
    7,515.64x = 11,277.94 × 4,186.68
  4. Step 4: Simplify right side
    7,515.64x = 47,217,125.84
  5. Step 5: Solve for x
    x = 47,217,125.84/7,515.64
  6. Step 6: Final answer
    x = 6,282.52

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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.