Home / 7,765.11-10,715.51-4,228.34

Finding the Fourth Proportional to 7,765.11, 10,715.51 and 4,228.34

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Solution

The fourth proportional to 7,765.11, 10,715.51 and 4,228.34 is: 5,834.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.11 : 10,715.51 = 4,228.34 : x
  2. Step 2: Convert to fraction form
    7,765.11/10,715.51 = 4,228.34/x
  3. Step 3: Cross multiply
    7,765.11x = 10,715.51 × 4,228.34
  4. Step 4: Simplify right side
    7,765.11x = 45,308,856.91
  5. Step 5: Solve for x
    x = 45,308,856.91/7,765.11
  6. Step 6: Final answer
    x = 5,834.93

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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.