Home / 10,292.45-15,438.67-3,718.49

Finding the Fourth Proportional to 10,292.45, 15,438.67 and 3,718.49

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Solution

The fourth proportional to 10,292.45, 15,438.67 and 3,718.49 is: 5,577.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,292.45 : 15,438.67 = 3,718.49 : x
  2. Step 2: Convert to fraction form
    10,292.45/15,438.67 = 3,718.49/x
  3. Step 3: Cross multiply
    10,292.45x = 15,438.67 × 3,718.49
  4. Step 4: Simplify right side
    10,292.45x = 57,408,453.52
  5. Step 5: Solve for x
    x = 57,408,453.52/10,292.45
  6. Step 6: Final answer
    x = 5,577.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.