Home / 19,659.96-27,129.81-10,707.42

Finding the Fourth Proportional to 19,659.96, 27,129.81 and 10,707.42

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Solution

The fourth proportional to 19,659.96, 27,129.81 and 10,707.42 is: 14,775.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.96 : 27,129.81 = 10,707.42 : x
  2. Step 2: Convert to fraction form
    19,659.96/27,129.81 = 10,707.42/x
  3. Step 3: Cross multiply
    19,659.96x = 27,129.81 × 10,707.42
  4. Step 4: Simplify right side
    19,659.96x = 290,490,270.19
  5. Step 5: Solve for x
    x = 290,490,270.19/19,659.96
  6. Step 6: Final answer
    x = 14,775.73

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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.