Home / 13,712.92-18,923.74-7,425.25

Finding the Fourth Proportional to 13,712.92, 18,923.74 and 7,425.25

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Solution

The fourth proportional to 13,712.92, 18,923.74 and 7,425.25 is: 10,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.92 : 18,923.74 = 7,425.25 : x
  2. Step 2: Convert to fraction form
    13,712.92/18,923.74 = 7,425.25/x
  3. Step 3: Cross multiply
    13,712.92x = 18,923.74 × 7,425.25
  4. Step 4: Simplify right side
    13,712.92x = 140,513,500.44
  5. Step 5: Solve for x
    x = 140,513,500.44/13,712.92
  6. Step 6: Final answer
    x = 10,246.80

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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.