Home / 10,574.25-15,860.76-3,178.55

Finding the Fourth Proportional to 10,574.25, 15,860.76 and 3,178.55

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Solution

The fourth proportional to 10,574.25, 15,860.76 and 3,178.55 is: 4,767.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,574.25 : 15,860.76 = 3,178.55 : x
  2. Step 2: Convert to fraction form
    10,574.25/15,860.76 = 3,178.55/x
  3. Step 3: Cross multiply
    10,574.25x = 15,860.76 × 3,178.55
  4. Step 4: Simplify right side
    10,574.25x = 50,414,139.39
  5. Step 5: Solve for x
    x = 50,414,139.39/10,574.25
  6. Step 6: Final answer
    x = 4,767.63

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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.