Home / 15,121.07-20,864.01-8,832.23

Finding the Fourth Proportional to 15,121.07, 20,864.01 and 8,832.23

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Solution

The fourth proportional to 15,121.07, 20,864.01 and 8,832.23 is: 12,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,121.07 : 20,864.01 = 8,832.23 : x
  2. Step 2: Convert to fraction form
    15,121.07/20,864.01 = 8,832.23/x
  3. Step 3: Cross multiply
    15,121.07x = 20,864.01 × 8,832.23
  4. Step 4: Simplify right side
    15,121.07x = 184,275,630.72
  5. Step 5: Solve for x
    x = 184,275,630.72/15,121.07
  6. Step 6: Final answer
    x = 12,186.68

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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.