Home / 9,019.57-13,530.83-2,779.58

Finding the Fourth Proportional to 9,019.57, 13,530.83 and 2,779.58

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Solution

The fourth proportional to 9,019.57, 13,530.83 and 2,779.58 is: 4,169.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.57 : 13,530.83 = 2,779.58 : x
  2. Step 2: Convert to fraction form
    9,019.57/13,530.83 = 2,779.58/x
  3. Step 3: Cross multiply
    9,019.57x = 13,530.83 × 2,779.58
  4. Step 4: Simplify right side
    9,019.57x = 37,610,065.23
  5. Step 5: Solve for x
    x = 37,610,065.23/9,019.57
  6. Step 6: Final answer
    x = 4,169.83

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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.