Home / 9,186.12-13,779.88-2,860.20

Finding the Fourth Proportional to 9,186.12, 13,779.88 and 2,860.20

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Solution

The fourth proportional to 9,186.12, 13,779.88 and 2,860.20 is: 4,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.12 : 13,779.88 = 2,860.20 : x
  2. Step 2: Convert to fraction form
    9,186.12/13,779.88 = 2,860.20/x
  3. Step 3: Cross multiply
    9,186.12x = 13,779.88 × 2,860.20
  4. Step 4: Simplify right side
    9,186.12x = 39,413,212.78
  5. Step 5: Solve for x
    x = 39,413,212.78/9,186.12
  6. Step 6: Final answer
    x = 4,290.52

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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.