Home / 13,933.88-19,228.02-7,964.76

Finding the Fourth Proportional to 13,933.88, 19,228.02 and 7,964.76

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Solution

The fourth proportional to 13,933.88, 19,228.02 and 7,964.76 is: 10,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,933.88 : 19,228.02 = 7,964.76 : x
  2. Step 2: Convert to fraction form
    13,933.88/19,228.02 = 7,964.76/x
  3. Step 3: Cross multiply
    13,933.88x = 19,228.02 × 7,964.76
  4. Step 4: Simplify right side
    13,933.88x = 153,146,564.58
  5. Step 5: Solve for x
    x = 153,146,564.58/13,933.88
  6. Step 6: Final answer
    x = 10,990.95

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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.