Home / 15,323.31-21,146.25-8,609.22

Finding the Fourth Proportional to 15,323.31, 21,146.25 and 8,609.22

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Solution

The fourth proportional to 15,323.31, 21,146.25 and 8,609.22 is: 11,880.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.31 : 21,146.25 = 8,609.22 : x
  2. Step 2: Convert to fraction form
    15,323.31/21,146.25 = 8,609.22/x
  3. Step 3: Cross multiply
    15,323.31x = 21,146.25 × 8,609.22
  4. Step 4: Simplify right side
    15,323.31x = 182,052,718.43
  5. Step 5: Solve for x
    x = 182,052,718.43/15,323.31
  6. Step 6: Final answer
    x = 11,880.77

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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.