Home / 19,660.11-27,131.28-10,707.79

Finding the Fourth Proportional to 19,660.11, 27,131.28 and 10,707.79

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Solution

The fourth proportional to 19,660.11, 27,131.28 and 10,707.79 is: 14,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,660.11 : 27,131.28 = 10,707.79 : x
  2. Step 2: Convert to fraction form
    19,660.11/27,131.28 = 10,707.79/x
  3. Step 3: Cross multiply
    19,660.11x = 27,131.28 × 10,707.79
  4. Step 4: Simplify right side
    19,660.11x = 290,516,048.67
  5. Step 5: Solve for x
    x = 290,516,048.67/19,660.11
  6. Step 6: Final answer
    x = 14,776.93

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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.