Home / 10,496.01-15,720.21-8,137.11

Finding the Fourth Proportional to 10,496.01, 15,720.21 and 8,137.11

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Solution

The fourth proportional to 10,496.01, 15,720.21 and 8,137.11 is: 12,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,496.01 : 15,720.21 = 8,137.11 : x
  2. Step 2: Convert to fraction form
    10,496.01/15,720.21 = 8,137.11/x
  3. Step 3: Cross multiply
    10,496.01x = 15,720.21 × 8,137.11
  4. Step 4: Simplify right side
    10,496.01x = 127,917,077.99
  5. Step 5: Solve for x
    x = 127,917,077.99/10,496.01
  6. Step 6: Final answer
    x = 12,187.21

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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.