Home / 8,123.91-11,211.68-4,587.77

Finding the Fourth Proportional to 8,123.91, 11,211.68 and 4,587.77

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Solution

The fourth proportional to 8,123.91, 11,211.68 and 4,587.77 is: 6,331.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.91 : 11,211.68 = 4,587.77 : x
  2. Step 2: Convert to fraction form
    8,123.91/11,211.68 = 4,587.77/x
  3. Step 3: Cross multiply
    8,123.91x = 11,211.68 × 4,587.77
  4. Step 4: Simplify right side
    8,123.91x = 51,436,564.56
  5. Step 5: Solve for x
    x = 51,436,564.56/8,123.91
  6. Step 6: Final answer
    x = 6,331.50

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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.