Home / 19,659.95-27,131.21-10,707.93

Finding the Fourth Proportional to 19,659.95, 27,131.21 and 10,707.93

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Solution

The fourth proportional to 19,659.95, 27,131.21 and 10,707.93 is: 14,777.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.95 : 27,131.21 = 10,707.93 : x
  2. Step 2: Convert to fraction form
    19,659.95/27,131.21 = 10,707.93/x
  3. Step 3: Cross multiply
    19,659.95x = 27,131.21 × 10,707.93
  4. Step 4: Simplify right side
    19,659.95x = 290,519,043.96
  5. Step 5: Solve for x
    x = 290,519,043.96/19,659.95
  6. Step 6: Final answer
    x = 14,777.21

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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.