Home / 19,760.09-29,648.46-8,661.05

Finding the Fourth Proportional to 19,760.09, 29,648.46 and 8,661.05

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Solution

The fourth proportional to 19,760.09, 29,648.46 and 8,661.05 is: 12,995.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,760.09 : 29,648.46 = 8,661.05 : x
  2. Step 2: Convert to fraction form
    19,760.09/29,648.46 = 8,661.05/x
  3. Step 3: Cross multiply
    19,760.09x = 29,648.46 × 8,661.05
  4. Step 4: Simplify right side
    19,760.09x = 256,786,751.18
  5. Step 5: Solve for x
    x = 256,786,751.18/19,760.09
  6. Step 6: Final answer
    x = 12,995.22

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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.