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Finding the Fourth Proportional to 5,529.67, 8,312.73 and 5,123.86

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Solution

The fourth proportional to 5,529.67, 8,312.73 and 5,123.86 is: 7,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,529.67 : 8,312.73 = 5,123.86 : x
  2. Step 2: Convert to fraction form
    5,529.67/8,312.73 = 5,123.86/x
  3. Step 3: Cross multiply
    5,529.67x = 8,312.73 × 5,123.86
  4. Step 4: Simplify right side
    5,529.67x = 42,593,264.74
  5. Step 5: Solve for x
    x = 42,593,264.74/5,529.67
  6. Step 6: Final answer
    x = 7,702.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.