Home / 15,684.93-21,645.24-8,611.81

Finding the Fourth Proportional to 15,684.93, 21,645.24 and 8,611.81

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Solution

The fourth proportional to 15,684.93, 21,645.24 and 8,611.81 is: 11,884.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.93 : 21,645.24 = 8,611.81 : x
  2. Step 2: Convert to fraction form
    15,684.93/21,645.24 = 8,611.81/x
  3. Step 3: Cross multiply
    15,684.93x = 21,645.24 × 8,611.81
  4. Step 4: Simplify right side
    15,684.93x = 186,404,694.28
  5. Step 5: Solve for x
    x = 186,404,694.28/15,684.93
  6. Step 6: Final answer
    x = 11,884.32

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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.