Home / 8,227.68-11,351.40-4,688.40

Finding the Fourth Proportional to 8,227.68, 11,351.40 and 4,688.40

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Solution

The fourth proportional to 8,227.68, 11,351.40 and 4,688.40 is: 6,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,227.68 : 11,351.40 = 4,688.40 : x
  2. Step 2: Convert to fraction form
    8,227.68/11,351.40 = 4,688.40/x
  3. Step 3: Cross multiply
    8,227.68x = 11,351.40 × 4,688.40
  4. Step 4: Simplify right side
    8,227.68x = 53,219,903.76
  5. Step 5: Solve for x
    x = 53,219,903.76/8,227.68
  6. Step 6: Final answer
    x = 6,468.40

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Half scale
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Double scale
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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.