Home / 15,649.50-21,596.07-8,939.04

Finding the Fourth Proportional to 15,649.50, 21,596.07 and 8,939.04

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Solution

The fourth proportional to 15,649.50, 21,596.07 and 8,939.04 is: 12,335.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,649.50 : 21,596.07 = 8,939.04 : x
  2. Step 2: Convert to fraction form
    15,649.50/21,596.07 = 8,939.04/x
  3. Step 3: Cross multiply
    15,649.50x = 21,596.07 × 8,939.04
  4. Step 4: Simplify right side
    15,649.50x = 193,048,133.57
  5. Step 5: Solve for x
    x = 193,048,133.57/15,649.50
  6. Step 6: Final answer
    x = 12,335.74

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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.