Home / 12,115.19-16,715.94-7,076.52

Finding the Fourth Proportional to 12,115.19, 16,715.94 and 7,076.52

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Solution

The fourth proportional to 12,115.19, 16,715.94 and 7,076.52 is: 9,763.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.19 : 16,715.94 = 7,076.52 : x
  2. Step 2: Convert to fraction form
    12,115.19/16,715.94 = 7,076.52/x
  3. Step 3: Cross multiply
    12,115.19x = 16,715.94 × 7,076.52
  4. Step 4: Simplify right side
    12,115.19x = 118,290,683.73
  5. Step 5: Solve for x
    x = 118,290,683.73/12,115.19
  6. Step 6: Final answer
    x = 9,763.84

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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.