Home / 10,124.79-15,186.65-3,198.75

Finding the Fourth Proportional to 10,124.79, 15,186.65 and 3,198.75

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Solution

The fourth proportional to 10,124.79, 15,186.65 and 3,198.75 is: 4,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,124.79 : 15,186.65 = 3,198.75 : x
  2. Step 2: Convert to fraction form
    10,124.79/15,186.65 = 3,198.75/x
  3. Step 3: Cross multiply
    10,124.79x = 15,186.65 × 3,198.75
  4. Step 4: Simplify right side
    10,124.79x = 48,578,280.69
  5. Step 5: Solve for x
    x = 48,578,280.69/10,124.79
  6. Step 6: Final answer
    x = 4,797.95

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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.