Home / 7,765.14-10,715.91-4,228.32

Finding the Fourth Proportional to 7,765.14, 10,715.91 and 4,228.32

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Solution

The fourth proportional to 7,765.14, 10,715.91 and 4,228.32 is: 5,835.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.14 : 10,715.91 = 4,228.32 : x
  2. Step 2: Convert to fraction form
    7,765.14/10,715.91 = 4,228.32/x
  3. Step 3: Cross multiply
    7,765.14x = 10,715.91 × 4,228.32
  4. Step 4: Simplify right side
    7,765.14x = 45,310,296.57
  5. Step 5: Solve for x
    x = 45,310,296.57/7,765.14
  6. Step 6: Final answer
    x = 5,835.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.