Home / 13,934.72-19,228.64-7,966.20

Finding the Fourth Proportional to 13,934.72, 19,228.64 and 7,966.20

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Solution

The fourth proportional to 13,934.72, 19,228.64 and 7,966.20 is: 10,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.72 : 19,228.64 = 7,966.20 : x
  2. Step 2: Convert to fraction form
    13,934.72/19,228.64 = 7,966.20/x
  3. Step 3: Cross multiply
    13,934.72x = 19,228.64 × 7,966.20
  4. Step 4: Simplify right side
    13,934.72x = 153,179,191.97
  5. Step 5: Solve for x
    x = 153,179,191.97/13,934.72
  6. Step 6: Final answer
    x = 10,992.63

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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.