Home / 13,447.54-18,558.05-7,398.03

Finding the Fourth Proportional to 13,447.54, 18,558.05 and 7,398.03

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Solution

The fourth proportional to 13,447.54, 18,558.05 and 7,398.03 is: 10,209.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.54 : 18,558.05 = 7,398.03 : x
  2. Step 2: Convert to fraction form
    13,447.54/18,558.05 = 7,398.03/x
  3. Step 3: Cross multiply
    13,447.54x = 18,558.05 × 7,398.03
  4. Step 4: Simplify right side
    13,447.54x = 137,293,010.64
  5. Step 5: Solve for x
    x = 137,293,010.64/13,447.54
  6. Step 6: Final answer
    x = 10,209.53

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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.