Home / 8,650.72-11,939.10-5,669.08

Finding the Fourth Proportional to 8,650.72, 11,939.10 and 5,669.08

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Solution

The fourth proportional to 8,650.72, 11,939.10 and 5,669.08 is: 7,824.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,650.72 : 11,939.10 = 5,669.08 : x
  2. Step 2: Convert to fraction form
    8,650.72/11,939.10 = 5,669.08/x
  3. Step 3: Cross multiply
    8,650.72x = 11,939.10 × 5,669.08
  4. Step 4: Simplify right side
    8,650.72x = 67,683,713.03
  5. Step 5: Solve for x
    x = 67,683,713.03/8,650.72
  6. Step 6: Final answer
    x = 7,824.06

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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.