Home / 13,743.26-18,966.72-7,775.54

Finding the Fourth Proportional to 13,743.26, 18,966.72 and 7,775.54

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Solution

The fourth proportional to 13,743.26, 18,966.72 and 7,775.54 is: 10,730.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.26 : 18,966.72 = 7,775.54 : x
  2. Step 2: Convert to fraction form
    13,743.26/18,966.72 = 7,775.54/x
  3. Step 3: Cross multiply
    13,743.26x = 18,966.72 × 7,775.54
  4. Step 4: Simplify right side
    13,743.26x = 147,476,490.03
  5. Step 5: Solve for x
    x = 147,476,490.03/13,743.26
  6. Step 6: Final answer
    x = 10,730.82

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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.