Home / 12,172.13-18,261.43-3,852.29

Finding the Fourth Proportional to 12,172.13, 18,261.43 and 3,852.29

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Solution

The fourth proportional to 12,172.13, 18,261.43 and 3,852.29 is: 5,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.13 : 18,261.43 = 3,852.29 : x
  2. Step 2: Convert to fraction form
    12,172.13/18,261.43 = 3,852.29/x
  3. Step 3: Cross multiply
    12,172.13x = 18,261.43 × 3,852.29
  4. Step 4: Simplify right side
    12,172.13x = 70,348,360.20
  5. Step 5: Solve for x
    x = 70,348,360.20/12,172.13
  6. Step 6: Final answer
    x = 5,779.46

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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.