Home / 19,659.89-27,130.25-10,707.77

Finding the Fourth Proportional to 19,659.89, 27,130.25 and 10,707.77

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Solution

The fourth proportional to 19,659.89, 27,130.25 and 10,707.77 is: 14,776.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.89 : 27,130.25 = 10,707.77 : x
  2. Step 2: Convert to fraction form
    19,659.89/27,130.25 = 10,707.77/x
  3. Step 3: Cross multiply
    19,659.89x = 27,130.25 × 10,707.77
  4. Step 4: Simplify right side
    19,659.89x = 290,504,287.85
  5. Step 5: Solve for x
    x = 290,504,287.85/19,659.89
  6. Step 6: Final answer
    x = 14,776.50

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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.