Home / 12,135.74-16,747.36-6,830.64

Finding the Fourth Proportional to 12,135.74, 16,747.36 and 6,830.64

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Solution

The fourth proportional to 12,135.74, 16,747.36 and 6,830.64 is: 9,426.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,135.74 : 16,747.36 = 6,830.64 : x
  2. Step 2: Convert to fraction form
    12,135.74/16,747.36 = 6,830.64/x
  3. Step 3: Cross multiply
    12,135.74x = 16,747.36 × 6,830.64
  4. Step 4: Simplify right side
    12,135.74x = 114,395,187.11
  5. Step 5: Solve for x
    x = 114,395,187.11/12,135.74
  6. Step 6: Final answer
    x = 9,426.31

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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.