Home / 12,003.78-16,565.40-6,626.49

Finding the Fourth Proportional to 12,003.78, 16,565.40 and 6,626.49

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Solution

The fourth proportional to 12,003.78, 16,565.40 and 6,626.49 is: 9,144.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.78 : 16,565.40 = 6,626.49 : x
  2. Step 2: Convert to fraction form
    12,003.78/16,565.40 = 6,626.49/x
  3. Step 3: Cross multiply
    12,003.78x = 16,565.40 × 6,626.49
  4. Step 4: Simplify right side
    12,003.78x = 109,770,457.45
  5. Step 5: Solve for x
    x = 109,770,457.45/12,003.78
  6. Step 6: Final answer
    x = 9,144.66

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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.