Home / 15,889.47-21,930.66-9,176.19

Finding the Fourth Proportional to 15,889.47, 21,930.66 and 9,176.19

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Solution

The fourth proportional to 15,889.47, 21,930.66 and 9,176.19 is: 12,664.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,889.47 : 21,930.66 = 9,176.19 : x
  2. Step 2: Convert to fraction form
    15,889.47/21,930.66 = 9,176.19/x
  3. Step 3: Cross multiply
    15,889.47x = 21,930.66 × 9,176.19
  4. Step 4: Simplify right side
    15,889.47x = 201,239,902.99
  5. Step 5: Solve for x
    x = 201,239,902.99/15,889.47
  6. Step 6: Final answer
    x = 12,664.99

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Similar ratio
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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.