Home / 15,611.36-21,543.52-8,537.92

Finding the Fourth Proportional to 15,611.36, 21,543.52 and 8,537.92

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Solution

The fourth proportional to 15,611.36, 21,543.52 and 8,537.92 is: 11,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,611.36 : 21,543.52 = 8,537.92 : x
  2. Step 2: Convert to fraction form
    15,611.36/21,543.52 = 8,537.92/x
  3. Step 3: Cross multiply
    15,611.36x = 21,543.52 × 8,537.92
  4. Step 4: Simplify right side
    15,611.36x = 183,936,850.28
  5. Step 5: Solve for x
    x = 183,936,850.28/15,611.36
  6. Step 6: Final answer
    x = 11,782.24

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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.