Home / 8,779.32-13,157.37-5,257.98

Finding the Fourth Proportional to 8,779.32, 13,157.37 and 5,257.98

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Solution

The fourth proportional to 8,779.32, 13,157.37 and 5,257.98 is: 7,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.32 : 13,157.37 = 5,257.98 : x
  2. Step 2: Convert to fraction form
    8,779.32/13,157.37 = 5,257.98/x
  3. Step 3: Cross multiply
    8,779.32x = 13,157.37 × 5,257.98
  4. Step 4: Simplify right side
    8,779.32x = 69,181,188.31
  5. Step 5: Solve for x
    x = 69,181,188.31/8,779.32
  6. Step 6: Final answer
    x = 7,880.02

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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.