Home / 8,484.72-11,705.44-6,121.68

Finding the Fourth Proportional to 8,484.72, 11,705.44 and 6,121.68

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Solution

The fourth proportional to 8,484.72, 11,705.44 and 6,121.68 is: 8,445.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.72 : 11,705.44 = 6,121.68 : x
  2. Step 2: Convert to fraction form
    8,484.72/11,705.44 = 6,121.68/x
  3. Step 3: Cross multiply
    8,484.72x = 11,705.44 × 6,121.68
  4. Step 4: Simplify right side
    8,484.72x = 71,656,957.94
  5. Step 5: Solve for x
    x = 71,656,957.94/8,484.72
  6. Step 6: Final answer
    x = 8,445.41

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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.