Home / 12,715.45-19,067.02-4,392.55

Finding the Fourth Proportional to 12,715.45, 19,067.02 and 4,392.55

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Solution

The fourth proportional to 12,715.45, 19,067.02 and 4,392.55 is: 6,586.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.45 : 19,067.02 = 4,392.55 : x
  2. Step 2: Convert to fraction form
    12,715.45/19,067.02 = 4,392.55/x
  3. Step 3: Cross multiply
    12,715.45x = 19,067.02 × 4,392.55
  4. Step 4: Simplify right side
    12,715.45x = 83,752,756.66
  5. Step 5: Solve for x
    x = 83,752,756.66/12,715.45
  6. Step 6: Final answer
    x = 6,586.69

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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.