Home / 13,743.93-18,966.78-7,456.44

Finding the Fourth Proportional to 13,743.93, 18,966.78 and 7,456.44

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Solution

The fourth proportional to 13,743.93, 18,966.78 and 7,456.44 is: 10,289.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.93 : 18,966.78 = 7,456.44 : x
  2. Step 2: Convert to fraction form
    13,743.93/18,966.78 = 7,456.44/x
  3. Step 3: Cross multiply
    13,743.93x = 18,966.78 × 7,456.44
  4. Step 4: Simplify right side
    13,743.93x = 141,424,657.06
  5. Step 5: Solve for x
    x = 141,424,657.06/13,743.93
  6. Step 6: Final answer
    x = 10,289.97

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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.