Home / 9,019.88-13,531.34-2,779.71

Finding the Fourth Proportional to 9,019.88, 13,531.34 and 2,779.71

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Solution

The fourth proportional to 9,019.88, 13,531.34 and 2,779.71 is: 4,170.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.88 : 13,531.34 = 2,779.71 : x
  2. Step 2: Convert to fraction form
    9,019.88/13,531.34 = 2,779.71/x
  3. Step 3: Cross multiply
    9,019.88x = 13,531.34 × 2,779.71
  4. Step 4: Simplify right side
    9,019.88x = 37,613,201.11
  5. Step 5: Solve for x
    x = 37,613,201.11/9,019.88
  6. Step 6: Final answer
    x = 4,170.03

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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.