Home / 12,889.44-19,329.72-6,652.80

Finding the Fourth Proportional to 12,889.44, 19,329.72 and 6,652.80

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Solution

The fourth proportional to 12,889.44, 19,329.72 and 6,652.80 is: 9,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,889.44 : 19,329.72 = 6,652.80 : x
  2. Step 2: Convert to fraction form
    12,889.44/19,329.72 = 6,652.80/x
  3. Step 3: Cross multiply
    12,889.44x = 19,329.72 × 6,652.80
  4. Step 4: Simplify right side
    12,889.44x = 128,596,761.22
  5. Step 5: Solve for x
    x = 128,596,761.22/12,889.44
  6. Step 6: Final answer
    x = 9,976.91

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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.