Home / 11,122.11-15,351.93-6,409.53

Finding the Fourth Proportional to 11,122.11, 15,351.93 and 6,409.53

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Solution

The fourth proportional to 11,122.11, 15,351.93 and 6,409.53 is: 8,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.11 : 15,351.93 = 6,409.53 : x
  2. Step 2: Convert to fraction form
    11,122.11/15,351.93 = 6,409.53/x
  3. Step 3: Cross multiply
    11,122.11x = 15,351.93 × 6,409.53
  4. Step 4: Simplify right side
    11,122.11x = 98,398,655.89
  5. Step 5: Solve for x
    x = 98,398,655.89/11,122.11
  6. Step 6: Final answer
    x = 8,847.12

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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.