Home / 13,110.72-19,666.08-11,304.65

Finding the Fourth Proportional to 13,110.72, 19,666.08 and 11,304.65

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Solution

The fourth proportional to 13,110.72, 19,666.08 and 11,304.65 is: 16,956.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.72 : 19,666.08 = 11,304.65 : x
  2. Step 2: Convert to fraction form
    13,110.72/19,666.08 = 11,304.65/x
  3. Step 3: Cross multiply
    13,110.72x = 19,666.08 × 11,304.65
  4. Step 4: Simplify right side
    13,110.72x = 222,318,290.65
  5. Step 5: Solve for x
    x = 222,318,290.65/13,110.72
  6. Step 6: Final answer
    x = 16,956.98

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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.