Home / 7,426.29-11,139.78-4,136.91

Finding the Fourth Proportional to 7,426.29, 11,139.78 and 4,136.91

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Solution

The fourth proportional to 7,426.29, 11,139.78 and 4,136.91 is: 6,205.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,426.29 : 11,139.78 = 4,136.91 : x
  2. Step 2: Convert to fraction form
    7,426.29/11,139.78 = 4,136.91/x
  3. Step 3: Cross multiply
    7,426.29x = 11,139.78 × 4,136.91
  4. Step 4: Simplify right side
    7,426.29x = 46,084,267.28
  5. Step 5: Solve for x
    x = 46,084,267.28/7,426.29
  6. Step 6: Final answer
    x = 6,205.56

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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.