Home / 12,868.25-19,305.43-5,472.95

Finding the Fourth Proportional to 12,868.25, 19,305.43 and 5,472.95

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Solution

The fourth proportional to 12,868.25, 19,305.43 and 5,472.95 is: 8,210.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,868.25 : 19,305.43 = 5,472.95 : x
  2. Step 2: Convert to fraction form
    12,868.25/19,305.43 = 5,472.95/x
  3. Step 3: Cross multiply
    12,868.25x = 19,305.43 × 5,472.95
  4. Step 4: Simplify right side
    12,868.25x = 105,657,542.91
  5. Step 5: Solve for x
    x = 105,657,542.91/12,868.25
  6. Step 6: Final answer
    x = 8,210.72

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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.