Home / 15,323.24-21,146.09-8,608.86

Finding the Fourth Proportional to 15,323.24, 21,146.09 and 8,608.86

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Solution

The fourth proportional to 15,323.24, 21,146.09 and 8,608.86 is: 11,880.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,323.24 : 21,146.09 = 8,608.86 : x
  2. Step 2: Convert to fraction form
    15,323.24/21,146.09 = 8,608.86/x
  3. Step 3: Cross multiply
    15,323.24x = 21,146.09 × 8,608.86
  4. Step 4: Simplify right side
    15,323.24x = 182,043,685.31
  5. Step 5: Solve for x
    x = 182,043,685.31/15,323.24
  6. Step 6: Final answer
    x = 11,880.24

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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.