Home / 15,333.93-21,157.07-8,618.22

Finding the Fourth Proportional to 15,333.93, 21,157.07 and 8,618.22

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Solution

The fourth proportional to 15,333.93, 21,157.07 and 8,618.22 is: 11,891.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,333.93 : 21,157.07 = 8,618.22 : x
  2. Step 2: Convert to fraction form
    15,333.93/21,157.07 = 8,618.22/x
  3. Step 3: Cross multiply
    15,333.93x = 21,157.07 × 8,618.22
  4. Step 4: Simplify right side
    15,333.93x = 182,336,240.72
  5. Step 5: Solve for x
    x = 182,336,240.72/15,333.93
  6. Step 6: Final answer
    x = 11,891.03

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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.