Home / 13,669.32-18,939.36-13,374.12

Finding the Fourth Proportional to 13,669.32, 18,939.36 and 13,374.12

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Solution

The fourth proportional to 13,669.32, 18,939.36 and 13,374.12 is: 18,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.32 : 18,939.36 = 13,374.12 : x
  2. Step 2: Convert to fraction form
    13,669.32/18,939.36 = 13,374.12/x
  3. Step 3: Cross multiply
    13,669.32x = 18,939.36 × 13,374.12
  4. Step 4: Simplify right side
    13,669.32x = 253,297,273.36
  5. Step 5: Solve for x
    x = 253,297,273.36/13,669.32
  6. Step 6: Final answer
    x = 18,530.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.