Home / 19,718.02-27,195.51-11,758.56

Finding the Fourth Proportional to 19,718.02, 27,195.51 and 11,758.56

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Solution

The fourth proportional to 19,718.02, 27,195.51 and 11,758.56 is: 16,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.02 : 27,195.51 = 11,758.56 : x
  2. Step 2: Convert to fraction form
    19,718.02/27,195.51 = 11,758.56/x
  3. Step 3: Cross multiply
    19,718.02x = 27,195.51 × 11,758.56
  4. Step 4: Simplify right side
    19,718.02x = 319,780,036.07
  5. Step 5: Solve for x
    x = 319,780,036.07/19,718.02
  6. Step 6: Final answer
    x = 16,217.65

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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.