Home / 13,228.66-18,249.05-9,638.03

Finding the Fourth Proportional to 13,228.66, 18,249.05 and 9,638.03

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Solution

The fourth proportional to 13,228.66, 18,249.05 and 9,638.03 is: 13,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.66 : 18,249.05 = 9,638.03 : x
  2. Step 2: Convert to fraction form
    13,228.66/18,249.05 = 9,638.03/x
  3. Step 3: Cross multiply
    13,228.66x = 18,249.05 × 9,638.03
  4. Step 4: Simplify right side
    13,228.66x = 175,884,820.37
  5. Step 5: Solve for x
    x = 175,884,820.37/13,228.66
  6. Step 6: Final answer
    x = 13,295.74

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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.