Home / 15,561.09-23,351.21-8,170.86

Finding the Fourth Proportional to 15,561.09, 23,351.21 and 8,170.86

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Solution

The fourth proportional to 15,561.09, 23,351.21 and 8,170.86 is: 12,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,561.09 : 23,351.21 = 8,170.86 : x
  2. Step 2: Convert to fraction form
    15,561.09/23,351.21 = 8,170.86/x
  3. Step 3: Cross multiply
    15,561.09x = 23,351.21 × 8,170.86
  4. Step 4: Simplify right side
    15,561.09x = 190,799,426.89
  5. Step 5: Solve for x
    x = 190,799,426.89/15,561.09
  6. Step 6: Final answer
    x = 12,261.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.