Home / 13,269.12-19,864.80-9,306.72

Finding the Fourth Proportional to 13,269.12, 19,864.80 and 9,306.72

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Solution

The fourth proportional to 13,269.12, 19,864.80 and 9,306.72 is: 13,932.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.12 : 19,864.80 = 9,306.72 : x
  2. Step 2: Convert to fraction form
    13,269.12/19,864.80 = 9,306.72/x
  3. Step 3: Cross multiply
    13,269.12x = 19,864.80 × 9,306.72
  4. Step 4: Simplify right side
    13,269.12x = 184,876,131.46
  5. Step 5: Solve for x
    x = 184,876,131.46/13,269.12
  6. Step 6: Final answer
    x = 13,932.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.