Home / 8,645.41-11,923.90-6,661.45

Finding the Fourth Proportional to 8,645.41, 11,923.90 and 6,661.45

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Solution

The fourth proportional to 8,645.41, 11,923.90 and 6,661.45 is: 9,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.41 : 11,923.90 = 6,661.45 : x
  2. Step 2: Convert to fraction form
    8,645.41/11,923.90 = 6,661.45/x
  3. Step 3: Cross multiply
    8,645.41x = 11,923.90 × 6,661.45
  4. Step 4: Simplify right side
    8,645.41x = 79,430,463.66
  5. Step 5: Solve for x
    x = 79,430,463.66/8,645.41
  6. Step 6: Final answer
    x = 9,187.59

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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.