Home / 13,436.97-20,159.51-5,427.63

Finding the Fourth Proportional to 13,436.97, 20,159.51 and 5,427.63

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Solution

The fourth proportional to 13,436.97, 20,159.51 and 5,427.63 is: 8,143.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.97 : 20,159.51 = 5,427.63 : x
  2. Step 2: Convert to fraction form
    13,436.97/20,159.51 = 5,427.63/x
  3. Step 3: Cross multiply
    13,436.97x = 20,159.51 × 5,427.63
  4. Step 4: Simplify right side
    13,436.97x = 109,418,334.12
  5. Step 5: Solve for x
    x = 109,418,334.12/13,436.97
  6. Step 6: Final answer
    x = 8,143.08

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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.