Home / 10,212.05-15,310.87-3,966.86

Finding the Fourth Proportional to 10,212.05, 15,310.87 and 3,966.86

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Solution

The fourth proportional to 10,212.05, 15,310.87 and 3,966.86 is: 5,947.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.05 : 15,310.87 = 3,966.86 : x
  2. Step 2: Convert to fraction form
    10,212.05/15,310.87 = 3,966.86/x
  3. Step 3: Cross multiply
    10,212.05x = 15,310.87 × 3,966.86
  4. Step 4: Simplify right side
    10,212.05x = 60,736,106.13
  5. Step 5: Solve for x
    x = 60,736,106.13/10,212.05
  6. Step 6: Final answer
    x = 5,947.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.