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Finding the Fourth Proportional to 10,998.71, 15,179.02 and 6,282.89

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Solution

The fourth proportional to 10,998.71, 15,179.02 and 6,282.89 is: 8,670.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.71 : 15,179.02 = 6,282.89 : x
  2. Step 2: Convert to fraction form
    10,998.71/15,179.02 = 6,282.89/x
  3. Step 3: Cross multiply
    10,998.71x = 15,179.02 × 6,282.89
  4. Step 4: Simplify right side
    10,998.71x = 95,368,021.37
  5. Step 5: Solve for x
    x = 95,368,021.37/10,998.71
  6. Step 6: Final answer
    x = 8,670.84

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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.