Home / 10,178.43-15,267.66-2,782.95

Finding the Fourth Proportional to 10,178.43, 15,267.66 and 2,782.95

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Solution

The fourth proportional to 10,178.43, 15,267.66 and 2,782.95 is: 4,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,178.43 : 15,267.66 = 2,782.95 : x
  2. Step 2: Convert to fraction form
    10,178.43/15,267.66 = 2,782.95/x
  3. Step 3: Cross multiply
    10,178.43x = 15,267.66 × 2,782.95
  4. Step 4: Simplify right side
    10,178.43x = 42,489,120.48
  5. Step 5: Solve for x
    x = 42,489,120.48/10,178.43
  6. Step 6: Final answer
    x = 4,174.43

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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.