Home / 13,408.68-18,501.98-7,440.33

Finding the Fourth Proportional to 13,408.68, 18,501.98 and 7,440.33

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Solution

The fourth proportional to 13,408.68, 18,501.98 and 7,440.33 is: 10,266.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.68 : 18,501.98 = 7,440.33 : x
  2. Step 2: Convert to fraction form
    13,408.68/18,501.98 = 7,440.33/x
  3. Step 3: Cross multiply
    13,408.68x = 18,501.98 × 7,440.33
  4. Step 4: Simplify right side
    13,408.68x = 137,660,799.65
  5. Step 5: Solve for x
    x = 137,660,799.65/13,408.68
  6. Step 6: Final answer
    x = 10,266.54

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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.