Home / 12,129.61-16,738.31-6,752.33

Finding the Fourth Proportional to 12,129.61, 16,738.31 and 6,752.33

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Solution

The fourth proportional to 12,129.61, 16,738.31 and 6,752.33 is: 9,317.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.61 : 16,738.31 = 6,752.33 : x
  2. Step 2: Convert to fraction form
    12,129.61/16,738.31 = 6,752.33/x
  3. Step 3: Cross multiply
    12,129.61x = 16,738.31 × 6,752.33
  4. Step 4: Simplify right side
    12,129.61x = 113,022,592.76
  5. Step 5: Solve for x
    x = 113,022,592.76/12,129.61
  6. Step 6: Final answer
    x = 9,317.91

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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.