Home / 11,136.24-15,373.26-6,419.70

Finding the Fourth Proportional to 11,136.24, 15,373.26 and 6,419.70

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Solution

The fourth proportional to 11,136.24, 15,373.26 and 6,419.70 is: 8,862.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.24 : 15,373.26 = 6,419.70 : x
  2. Step 2: Convert to fraction form
    11,136.24/15,373.26 = 6,419.70/x
  3. Step 3: Cross multiply
    11,136.24x = 15,373.26 × 6,419.70
  4. Step 4: Simplify right side
    11,136.24x = 98,691,717.22
  5. Step 5: Solve for x
    x = 98,691,717.22/11,136.24
  6. Step 6: Final answer
    x = 8,862.21

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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.