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Finding the Fourth Proportional to 8,779.62, 13,170.04 and 4,339.62

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Solution

The fourth proportional to 8,779.62, 13,170.04 and 4,339.62 is: 6,509.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.62 : 13,170.04 = 4,339.62 : x
  2. Step 2: Convert to fraction form
    8,779.62/13,170.04 = 4,339.62/x
  3. Step 3: Cross multiply
    8,779.62x = 13,170.04 × 4,339.62
  4. Step 4: Simplify right side
    8,779.62x = 57,152,968.98
  5. Step 5: Solve for x
    x = 57,152,968.98/8,779.62
  6. Step 6: Final answer
    x = 6,509.73

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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.