Home / 13,172.22-19,756.44-4,407.21

Finding the Fourth Proportional to 13,172.22, 19,756.44 and 4,407.21

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Solution

The fourth proportional to 13,172.22, 19,756.44 and 4,407.21 is: 6,610.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.22 : 19,756.44 = 4,407.21 : x
  2. Step 2: Convert to fraction form
    13,172.22/19,756.44 = 4,407.21/x
  3. Step 3: Cross multiply
    13,172.22x = 19,756.44 × 4,407.21
  4. Step 4: Simplify right side
    13,172.22x = 87,070,779.93
  5. Step 5: Solve for x
    x = 87,070,779.93/13,172.22
  6. Step 6: Final answer
    x = 6,610.18

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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.