Home / 13,025.57-17,969.66-8,779.37

Finding the Fourth Proportional to 13,025.57, 17,969.66 and 8,779.37

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Solution

The fourth proportional to 13,025.57, 17,969.66 and 8,779.37 is: 12,111.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,025.57 : 17,969.66 = 8,779.37 : x
  2. Step 2: Convert to fraction form
    13,025.57/17,969.66 = 8,779.37/x
  3. Step 3: Cross multiply
    13,025.57x = 17,969.66 × 8,779.37
  4. Step 4: Simplify right side
    13,025.57x = 157,762,160.17
  5. Step 5: Solve for x
    x = 157,762,160.17/13,025.57
  6. Step 6: Final answer
    x = 12,111.73

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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.