Home / 11,692.06-16,129.02-7,915.39

Finding the Fourth Proportional to 11,692.06, 16,129.02 and 7,915.39

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Solution

The fourth proportional to 11,692.06, 16,129.02 and 7,915.39 is: 10,919.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,692.06 : 16,129.02 = 7,915.39 : x
  2. Step 2: Convert to fraction form
    11,692.06/16,129.02 = 7,915.39/x
  3. Step 3: Cross multiply
    11,692.06x = 16,129.02 × 7,915.39
  4. Step 4: Simplify right side
    11,692.06x = 127,667,483.62
  5. Step 5: Solve for x
    x = 127,667,483.62/11,692.06
  6. Step 6: Final answer
    x = 10,919.16

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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.