Home / 8,241.12-12,357.84-4,779.36

Finding the Fourth Proportional to 8,241.12, 12,357.84 and 4,779.36

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Solution

The fourth proportional to 8,241.12, 12,357.84 and 4,779.36 is: 7,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.12 : 12,357.84 = 4,779.36 : x
  2. Step 2: Convert to fraction form
    8,241.12/12,357.84 = 4,779.36/x
  3. Step 3: Cross multiply
    8,241.12x = 12,357.84 × 4,779.36
  4. Step 4: Simplify right side
    8,241.12x = 59,062,566.18
  5. Step 5: Solve for x
    x = 59,062,566.18/8,241.12
  6. Step 6: Final answer
    x = 7,166.81

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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.