Home / 15,211.29-20,992.41-8,496.93

Finding the Fourth Proportional to 15,211.29, 20,992.41 and 8,496.93

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Solution

The fourth proportional to 15,211.29, 20,992.41 and 8,496.93 is: 11,726.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,211.29 : 20,992.41 = 8,496.93 : x
  2. Step 2: Convert to fraction form
    15,211.29/20,992.41 = 8,496.93/x
  3. Step 3: Cross multiply
    15,211.29x = 20,992.41 × 8,496.93
  4. Step 4: Simplify right side
    15,211.29x = 178,371,038.30
  5. Step 5: Solve for x
    x = 178,371,038.30/15,211.29
  6. Step 6: Final answer
    x = 11,726.23

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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.