Home / 12,438.35-18,657.22-5,040.82

Finding the Fourth Proportional to 12,438.35, 18,657.22 and 5,040.82

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Solution

The fourth proportional to 12,438.35, 18,657.22 and 5,040.82 is: 7,561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,438.35 : 18,657.22 = 5,040.82 : x
  2. Step 2: Convert to fraction form
    12,438.35/18,657.22 = 5,040.82/x
  3. Step 3: Cross multiply
    12,438.35x = 18,657.22 × 5,040.82
  4. Step 4: Simplify right side
    12,438.35x = 94,047,687.72
  5. Step 5: Solve for x
    x = 94,047,687.72/12,438.35
  6. Step 6: Final answer
    x = 7,561.11

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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.