Home / 7,715.60-11,554.76-4,418.68

Finding the Fourth Proportional to 7,715.60, 11,554.76 and 4,418.68

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Solution

The fourth proportional to 7,715.60, 11,554.76 and 4,418.68 is: 6,617.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.60 : 11,554.76 = 4,418.68 : x
  2. Step 2: Convert to fraction form
    7,715.60/11,554.76 = 4,418.68/x
  3. Step 3: Cross multiply
    7,715.60x = 11,554.76 × 4,418.68
  4. Step 4: Simplify right side
    7,715.60x = 51,056,786.92
  5. Step 5: Solve for x
    x = 51,056,786.92/7,715.60
  6. Step 6: Final answer
    x = 6,617.34

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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.