Home / 15,099.03-20,832.35-9,126.36

Finding the Fourth Proportional to 15,099.03, 20,832.35 and 9,126.36

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Solution

The fourth proportional to 15,099.03, 20,832.35 and 9,126.36 is: 12,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,099.03 : 20,832.35 = 9,126.36 : x
  2. Step 2: Convert to fraction form
    15,099.03/20,832.35 = 9,126.36/x
  3. Step 3: Cross multiply
    15,099.03x = 20,832.35 × 9,126.36
  4. Step 4: Simplify right side
    15,099.03x = 190,123,480.11
  5. Step 5: Solve for x
    x = 190,123,480.11/15,099.03
  6. Step 6: Final answer
    x = 12,591.77

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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.