Home / 13,575.21-18,728.97-10,743.05

Finding the Fourth Proportional to 13,575.21, 18,728.97 and 10,743.05

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Solution

The fourth proportional to 13,575.21, 18,728.97 and 10,743.05 is: 14,821.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.21 : 18,728.97 = 10,743.05 : x
  2. Step 2: Convert to fraction form
    13,575.21/18,728.97 = 10,743.05/x
  3. Step 3: Cross multiply
    13,575.21x = 18,728.97 × 10,743.05
  4. Step 4: Simplify right side
    13,575.21x = 201,206,167.51
  5. Step 5: Solve for x
    x = 201,206,167.51/13,575.21
  6. Step 6: Final answer
    x = 14,821.59

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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.