Home / 15,611.16-21,538.32-9,237.96

Finding the Fourth Proportional to 15,611.16, 21,538.32 and 9,237.96

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Solution

The fourth proportional to 15,611.16, 21,538.32 and 9,237.96 is: 12,745.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.16 : 21,538.32 = 9,237.96 : x
  2. Step 2: Convert to fraction form
    15,611.16/21,538.32 = 9,237.96/x
  3. Step 3: Cross multiply
    15,611.16x = 21,538.32 × 9,237.96
  4. Step 4: Simplify right side
    15,611.16x = 198,970,138.63
  5. Step 5: Solve for x
    x = 198,970,138.63/15,611.16
  6. Step 6: Final answer
    x = 12,745.38

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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.