Home / 13,232.25-18,128.43-12,734.10

Finding the Fourth Proportional to 13,232.25, 18,128.43 and 12,734.10

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Solution

The fourth proportional to 13,232.25, 18,128.43 and 12,734.10 is: 17,445.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,232.25 : 18,128.43 = 12,734.10 : x
  2. Step 2: Convert to fraction form
    13,232.25/18,128.43 = 12,734.10/x
  3. Step 3: Cross multiply
    13,232.25x = 18,128.43 × 12,734.10
  4. Step 4: Simplify right side
    13,232.25x = 230,849,240.46
  5. Step 5: Solve for x
    x = 230,849,240.46/13,232.25
  6. Step 6: Final answer
    x = 17,445.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.