Home / 13,351.76-18,426.80-7,383.90

Finding the Fourth Proportional to 13,351.76, 18,426.80 and 7,383.90

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Solution

The fourth proportional to 13,351.76, 18,426.80 and 7,383.90 is: 10,190.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.76 : 18,426.80 = 7,383.90 : x
  2. Step 2: Convert to fraction form
    13,351.76/18,426.80 = 7,383.90/x
  3. Step 3: Cross multiply
    13,351.76x = 18,426.80 × 7,383.90
  4. Step 4: Simplify right side
    13,351.76x = 136,061,648.52
  5. Step 5: Solve for x
    x = 136,061,648.52/13,351.76
  6. Step 6: Final answer
    x = 10,190.54

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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.