Home / 19,764.68-27,277.66-11,381

Finding the Fourth Proportional to 19,764.68, 27,277.66 and 11,381

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Solution

The fourth proportional to 19,764.68, 27,277.66 and 11,381 is: 15,707.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.68 : 27,277.66 = 11,381 : x
  2. Step 2: Convert to fraction form
    19,764.68/27,277.66 = 11,381/x
  3. Step 3: Cross multiply
    19,764.68x = 27,277.66 × 11,381
  4. Step 4: Simplify right side
    19,764.68x = 310,447,048.46
  5. Step 5: Solve for x
    x = 310,447,048.46/19,764.68
  6. Step 6: Final answer
    x = 15,707.16

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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.