Home / 13,617.26-18,779.32-8,832.20

Finding the Fourth Proportional to 13,617.26, 18,779.32 and 8,832.20

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Solution

The fourth proportional to 13,617.26, 18,779.32 and 8,832.20 is: 12,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,617.26 : 18,779.32 = 8,832.20 : x
  2. Step 2: Convert to fraction form
    13,617.26/18,779.32 = 8,832.20/x
  3. Step 3: Cross multiply
    13,617.26x = 18,779.32 × 8,832.20
  4. Step 4: Simplify right side
    13,617.26x = 165,862,710.10
  5. Step 5: Solve for x
    x = 165,862,710.10/13,617.26
  6. Step 6: Final answer
    x = 12,180.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.