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Finding the Fourth Proportional to 8,779.56, 13,157.44 and 4,400.16

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Solution

The fourth proportional to 8,779.56, 13,157.44 and 4,400.16 is: 6,594.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.56 : 13,157.44 = 4,400.16 : x
  2. Step 2: Convert to fraction form
    8,779.56/13,157.44 = 4,400.16/x
  3. Step 3: Cross multiply
    8,779.56x = 13,157.44 × 4,400.16
  4. Step 4: Simplify right side
    8,779.56x = 57,894,841.19
  5. Step 5: Solve for x
    x = 57,894,841.19/8,779.56
  6. Step 6: Final answer
    x = 6,594.28

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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.