Home / 13,513.43-18,627.37-12,427.22

Finding the Fourth Proportional to 13,513.43, 18,627.37 and 12,427.22

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Solution

The fourth proportional to 13,513.43, 18,627.37 and 12,427.22 is: 17,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.43 : 18,627.37 = 12,427.22 : x
  2. Step 2: Convert to fraction form
    13,513.43/18,627.37 = 12,427.22/x
  3. Step 3: Cross multiply
    13,513.43x = 18,627.37 × 12,427.22
  4. Step 4: Simplify right side
    13,513.43x = 231,486,440.51
  5. Step 5: Solve for x
    x = 231,486,440.51/13,513.43
  6. Step 6: Final answer
    x = 17,130.10

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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.