Home / 18,720.28-25,832.82-10,336.96

Finding the Fourth Proportional to 18,720.28, 25,832.82 and 10,336.96

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Solution

The fourth proportional to 18,720.28, 25,832.82 and 10,336.96 is: 14,264.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.28 : 25,832.82 = 10,336.96 : x
  2. Step 2: Convert to fraction form
    18,720.28/25,832.82 = 10,336.96/x
  3. Step 3: Cross multiply
    18,720.28x = 25,832.82 × 10,336.96
  4. Step 4: Simplify right side
    18,720.28x = 267,032,827.03
  5. Step 5: Solve for x
    x = 267,032,827.03/18,720.28
  6. Step 6: Final answer
    x = 14,264.36

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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.