Home / 7,217.28-10,840.32-6,809.76

Finding the Fourth Proportional to 7,217.28, 10,840.32 and 6,809.76

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Solution

The fourth proportional to 7,217.28, 10,840.32 and 6,809.76 is: 10,228.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,217.28 : 10,840.32 = 6,809.76 : x
  2. Step 2: Convert to fraction form
    7,217.28/10,840.32 = 6,809.76/x
  3. Step 3: Cross multiply
    7,217.28x = 10,840.32 × 6,809.76
  4. Step 4: Simplify right side
    7,217.28x = 73,819,977.52
  5. Step 5: Solve for x
    x = 73,819,977.52/7,217.28
  6. Step 6: Final answer
    x = 10,228.23

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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.