Home / 8,154.75-11,253.56-4,428.75

Finding the Fourth Proportional to 8,154.75, 11,253.56 and 4,428.75

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Solution

The fourth proportional to 8,154.75, 11,253.56 and 4,428.75 is: 6,111.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,154.75 : 11,253.56 = 4,428.75 : x
  2. Step 2: Convert to fraction form
    8,154.75/11,253.56 = 4,428.75/x
  3. Step 3: Cross multiply
    8,154.75x = 11,253.56 × 4,428.75
  4. Step 4: Simplify right side
    8,154.75x = 49,839,181.71
  5. Step 5: Solve for x
    x = 49,839,181.71/8,154.75
  6. Step 6: Final answer
    x = 6,111.68

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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.