Home / 10,939.36-16,408.84-3,148.16

Finding the Fourth Proportional to 10,939.36, 16,408.84 and 3,148.16

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Solution

The fourth proportional to 10,939.36, 16,408.84 and 3,148.16 is: 4,722.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.36 : 16,408.84 = 3,148.16 : x
  2. Step 2: Convert to fraction form
    10,939.36/16,408.84 = 3,148.16/x
  3. Step 3: Cross multiply
    10,939.36x = 16,408.84 × 3,148.16
  4. Step 4: Simplify right side
    10,939.36x = 51,657,653.73
  5. Step 5: Solve for x
    x = 51,657,653.73/10,939.36
  6. Step 6: Final answer
    x = 4,722.18

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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.