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Finding the Fourth Proportional to 8,779.59, 13,157.64 and 4,824.90

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Solution

The fourth proportional to 8,779.59, 13,157.64 and 4,824.90 is: 7,230.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.59 : 13,157.64 = 4,824.90 : x
  2. Step 2: Convert to fraction form
    8,779.59/13,157.64 = 4,824.90/x
  3. Step 3: Cross multiply
    8,779.59x = 13,157.64 × 4,824.90
  4. Step 4: Simplify right side
    8,779.59x = 63,484,297.24
  5. Step 5: Solve for x
    x = 63,484,297.24/8,779.59
  6. Step 6: Final answer
    x = 7,230.90

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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.