Home / 19,791.72-27,312.61-10,717.18

Finding the Fourth Proportional to 19,791.72, 27,312.61 and 10,717.18

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Solution

The fourth proportional to 19,791.72, 27,312.61 and 10,717.18 is: 14,789.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.72 : 27,312.61 = 10,717.18 : x
  2. Step 2: Convert to fraction form
    19,791.72/27,312.61 = 10,717.18/x
  3. Step 3: Cross multiply
    19,791.72x = 27,312.61 × 10,717.18
  4. Step 4: Simplify right side
    19,791.72x = 292,713,967.49
  5. Step 5: Solve for x
    x = 292,713,967.49/19,791.72
  6. Step 6: Final answer
    x = 14,789.72

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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.