Home / 19,772.10-27,292.95-11,811.42

Finding the Fourth Proportional to 19,772.10, 27,292.95 and 11,811.42

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Solution

The fourth proportional to 19,772.10, 27,292.95 and 11,811.42 is: 16,304.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.10 : 27,292.95 = 11,811.42 : x
  2. Step 2: Convert to fraction form
    19,772.10/27,292.95 = 11,811.42/x
  3. Step 3: Cross multiply
    19,772.10x = 27,292.95 × 11,811.42
  4. Step 4: Simplify right side
    19,772.10x = 322,368,495.49
  5. Step 5: Solve for x
    x = 322,368,495.49/19,772.10
  6. Step 6: Final answer
    x = 16,304.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.