Home / 7,484.10-11,238.30-5,418.60

Finding the Fourth Proportional to 7,484.10, 11,238.30 and 5,418.60

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Solution

The fourth proportional to 7,484.10, 11,238.30 and 5,418.60 is: 8,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.10 : 11,238.30 = 5,418.60 : x
  2. Step 2: Convert to fraction form
    7,484.10/11,238.30 = 5,418.60/x
  3. Step 3: Cross multiply
    7,484.10x = 11,238.30 × 5,418.60
  4. Step 4: Simplify right side
    7,484.10x = 60,895,852.38
  5. Step 5: Solve for x
    x = 60,895,852.38/7,484.10
  6. Step 6: Final answer
    x = 8,136.70

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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.