Home / 13,407.22-20,111.29-5,091.15

Finding the Fourth Proportional to 13,407.22, 20,111.29 and 5,091.15

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Solution

The fourth proportional to 13,407.22, 20,111.29 and 5,091.15 is: 7,636.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,407.22 : 20,111.29 = 5,091.15 : x
  2. Step 2: Convert to fraction form
    13,407.22/20,111.29 = 5,091.15/x
  3. Step 3: Cross multiply
    13,407.22x = 20,111.29 × 5,091.15
  4. Step 4: Simplify right side
    13,407.22x = 102,389,656.77
  5. Step 5: Solve for x
    x = 102,389,656.77/13,407.22
  6. Step 6: Final answer
    x = 7,636.90

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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.