Home / 13,505.22-18,636.39-7,537.32

Finding the Fourth Proportional to 13,505.22, 18,636.39 and 7,537.32

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Solution

The fourth proportional to 13,505.22, 18,636.39 and 7,537.32 is: 10,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.22 : 18,636.39 = 7,537.32 : x
  2. Step 2: Convert to fraction form
    13,505.22/18,636.39 = 7,537.32/x
  3. Step 3: Cross multiply
    13,505.22x = 18,636.39 × 7,537.32
  4. Step 4: Simplify right side
    13,505.22x = 140,468,435.07
  5. Step 5: Solve for x
    x = 140,468,435.07/13,505.22
  6. Step 6: Final answer
    x = 10,401.05

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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.