Home / 12,718.31-19,077.14-5,696.42

Finding the Fourth Proportional to 12,718.31, 19,077.14 and 5,696.42

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Solution

The fourth proportional to 12,718.31, 19,077.14 and 5,696.42 is: 8,544.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.31 : 19,077.14 = 5,696.42 : x
  2. Step 2: Convert to fraction form
    12,718.31/19,077.14 = 5,696.42/x
  3. Step 3: Cross multiply
    12,718.31x = 19,077.14 × 5,696.42
  4. Step 4: Simplify right side
    12,718.31x = 108,671,277.97
  5. Step 5: Solve for x
    x = 108,671,277.97/12,718.31
  6. Step 6: Final answer
    x = 8,544.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.