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Finding the Fourth Proportional to 10,914.79, 15,059.78 and 6,374.90

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Solution

The fourth proportional to 10,914.79, 15,059.78 and 6,374.90 is: 8,795.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,914.79 : 15,059.78 = 6,374.90 : x
  2. Step 2: Convert to fraction form
    10,914.79/15,059.78 = 6,374.90/x
  3. Step 3: Cross multiply
    10,914.79x = 15,059.78 × 6,374.90
  4. Step 4: Simplify right side
    10,914.79x = 96,004,591.52
  5. Step 5: Solve for x
    x = 96,004,591.52/10,914.79
  6. Step 6: Final answer
    x = 8,795.83

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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.