Home / 12,941.12-19,415.78-4,620.95

Finding the Fourth Proportional to 12,941.12, 19,415.78 and 4,620.95

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Solution

The fourth proportional to 12,941.12, 19,415.78 and 4,620.95 is: 6,932.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,941.12 : 19,415.78 = 4,620.95 : x
  2. Step 2: Convert to fraction form
    12,941.12/19,415.78 = 4,620.95/x
  3. Step 3: Cross multiply
    12,941.12x = 19,415.78 × 4,620.95
  4. Step 4: Simplify right side
    12,941.12x = 89,719,228.41
  5. Step 5: Solve for x
    x = 89,719,228.41/12,941.12
  6. Step 6: Final answer
    x = 6,932.88

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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.