Home / 13,333.38-18,400.20-9,306.06

Finding the Fourth Proportional to 13,333.38, 18,400.20 and 9,306.06

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Solution

The fourth proportional to 13,333.38, 18,400.20 and 9,306.06 is: 12,842.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.38 : 18,400.20 = 9,306.06 : x
  2. Step 2: Convert to fraction form
    13,333.38/18,400.20 = 9,306.06/x
  3. Step 3: Cross multiply
    13,333.38x = 18,400.20 × 9,306.06
  4. Step 4: Simplify right side
    13,333.38x = 171,233,365.21
  5. Step 5: Solve for x
    x = 171,233,365.21/13,333.38
  6. Step 6: Final answer
    x = 12,842.46

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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.