Home / 13,152.66-18,112.43-11,427.15

Finding the Fourth Proportional to 13,152.66, 18,112.43 and 11,427.15

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Solution

The fourth proportional to 13,152.66, 18,112.43 and 11,427.15 is: 15,736.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.66 : 18,112.43 = 11,427.15 : x
  2. Step 2: Convert to fraction form
    13,152.66/18,112.43 = 11,427.15/x
  3. Step 3: Cross multiply
    13,152.66x = 18,112.43 × 11,427.15
  4. Step 4: Simplify right side
    13,152.66x = 206,973,454.47
  5. Step 5: Solve for x
    x = 206,973,454.47/13,152.66
  6. Step 6: Final answer
    x = 15,736.24

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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.