Home / 10,905.84-15,050.61-6,191.64

Finding the Fourth Proportional to 10,905.84, 15,050.61 and 6,191.64

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Solution

The fourth proportional to 10,905.84, 15,050.61 and 6,191.64 is: 8,544.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.84 : 15,050.61 = 6,191.64 : x
  2. Step 2: Convert to fraction form
    10,905.84/15,050.61 = 6,191.64/x
  3. Step 3: Cross multiply
    10,905.84x = 15,050.61 × 6,191.64
  4. Step 4: Simplify right side
    10,905.84x = 93,187,958.90
  5. Step 5: Solve for x
    x = 93,187,958.90/10,905.84
  6. Step 6: Final answer
    x = 8,544.78

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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.