Home / 10,439.12-14,407.80-6,249.80

Finding the Fourth Proportional to 10,439.12, 14,407.80 and 6,249.80

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Solution

The fourth proportional to 10,439.12, 14,407.80 and 6,249.80 is: 8,625.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,439.12 : 14,407.80 = 6,249.80 : x
  2. Step 2: Convert to fraction form
    10,439.12/14,407.80 = 6,249.80/x
  3. Step 3: Cross multiply
    10,439.12x = 14,407.80 × 6,249.80
  4. Step 4: Simplify right side
    10,439.12x = 90,045,868.44
  5. Step 5: Solve for x
    x = 90,045,868.44/10,439.12
  6. Step 6: Final answer
    x = 8,625.81

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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.