Home / 7,715.58-11,581.60-6,797.04

Finding the Fourth Proportional to 7,715.58, 11,581.60 and 6,797.04

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Solution

The fourth proportional to 7,715.58, 11,581.60 and 6,797.04 is: 10,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.58 : 11,581.60 = 6,797.04 : x
  2. Step 2: Convert to fraction form
    7,715.58/11,581.60 = 6,797.04/x
  3. Step 3: Cross multiply
    7,715.58x = 11,581.60 × 6,797.04
  4. Step 4: Simplify right side
    7,715.58x = 78,720,598.46
  5. Step 5: Solve for x
    x = 78,720,598.46/7,715.58
  6. Step 6: Final answer
    x = 10,202.81

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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.