Home / 8,779.32-13,170.26-2,539.39

Finding the Fourth Proportional to 8,779.32, 13,170.26 and 2,539.39

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Solution

The fourth proportional to 8,779.32, 13,170.26 and 2,539.39 is: 3,809.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.32 : 13,170.26 = 2,539.39 : x
  2. Step 2: Convert to fraction form
    8,779.32/13,170.26 = 2,539.39/x
  3. Step 3: Cross multiply
    8,779.32x = 13,170.26 × 2,539.39
  4. Step 4: Simplify right side
    8,779.32x = 33,444,395.42
  5. Step 5: Solve for x
    x = 33,444,395.42/8,779.32
  6. Step 6: Final answer
    x = 3,809.45

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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.