Home / 19,659.57-27,130.98-11,277.69

Finding the Fourth Proportional to 19,659.57, 27,130.98 and 11,277.69

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Solution

The fourth proportional to 19,659.57, 27,130.98 and 11,277.69 is: 15,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,659.57 : 27,130.98 = 11,277.69 : x
  2. Step 2: Convert to fraction form
    19,659.57/27,130.98 = 11,277.69/x
  3. Step 3: Cross multiply
    19,659.57x = 27,130.98 × 11,277.69
  4. Step 4: Simplify right side
    19,659.57x = 305,974,781.84
  5. Step 5: Solve for x
    x = 305,974,781.84/19,659.57
  6. Step 6: Final answer
    x = 15,563.66

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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.