Home / 13,695.23-18,892.17-9,438.89

Finding the Fourth Proportional to 13,695.23, 18,892.17 and 9,438.89

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Solution

The fourth proportional to 13,695.23, 18,892.17 and 9,438.89 is: 13,020.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.23 : 18,892.17 = 9,438.89 : x
  2. Step 2: Convert to fraction form
    13,695.23/18,892.17 = 9,438.89/x
  3. Step 3: Cross multiply
    13,695.23x = 18,892.17 × 9,438.89
  4. Step 4: Simplify right side
    13,695.23x = 178,321,020.03
  5. Step 5: Solve for x
    x = 178,321,020.03/13,695.23
  6. Step 6: Final answer
    x = 13,020.66

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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.