Home / 13,123.08-19,684.56-11,171.16

Finding the Fourth Proportional to 13,123.08, 19,684.56 and 11,171.16

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Solution

The fourth proportional to 13,123.08, 19,684.56 and 11,171.16 is: 16,756.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123.08 : 19,684.56 = 11,171.16 : x
  2. Step 2: Convert to fraction form
    13,123.08/19,684.56 = 11,171.16/x
  3. Step 3: Cross multiply
    13,123.08x = 19,684.56 × 11,171.16
  4. Step 4: Simplify right side
    13,123.08x = 219,899,369.29
  5. Step 5: Solve for x
    x = 219,899,369.29/13,123.08
  6. Step 6: Final answer
    x = 16,756.69

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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.