Home / 13,932.88-19,226.64-7,963.76

Finding the Fourth Proportional to 13,932.88, 19,226.64 and 7,963.76

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Solution

The fourth proportional to 13,932.88, 19,226.64 and 7,963.76 is: 10,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.88 : 19,226.64 = 7,963.76 : x
  2. Step 2: Convert to fraction form
    13,932.88/19,226.64 = 7,963.76/x
  3. Step 3: Cross multiply
    13,932.88x = 19,226.64 × 7,963.76
  4. Step 4: Simplify right side
    13,932.88x = 153,116,346.57
  5. Step 5: Solve for x
    x = 153,116,346.57/13,932.88
  6. Step 6: Final answer
    x = 10,989.57

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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.