Home / 12,314.40-16,993.68-6,725.28

Finding the Fourth Proportional to 12,314.40, 16,993.68 and 6,725.28

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Solution

The fourth proportional to 12,314.40, 16,993.68 and 6,725.28 is: 9,280.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314.40 : 16,993.68 = 6,725.28 : x
  2. Step 2: Convert to fraction form
    12,314.40/16,993.68 = 6,725.28/x
  3. Step 3: Cross multiply
    12,314.40x = 16,993.68 × 6,725.28
  4. Step 4: Simplify right side
    12,314.40x = 114,287,256.23
  5. Step 5: Solve for x
    x = 114,287,256.23/12,314.40
  6. Step 6: Final answer
    x = 9,280.78

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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.