Home / 13,236.32-18,266.11-7,647.32

Finding the Fourth Proportional to 13,236.32, 18,266.11 and 7,647.32

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Solution

The fourth proportional to 13,236.32, 18,266.11 and 7,647.32 is: 10,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.32 : 18,266.11 = 7,647.32 : x
  2. Step 2: Convert to fraction form
    13,236.32/18,266.11 = 7,647.32/x
  3. Step 3: Cross multiply
    13,236.32x = 18,266.11 × 7,647.32
  4. Step 4: Simplify right side
    13,236.32x = 139,686,696.99
  5. Step 5: Solve for x
    x = 139,686,696.99/13,236.32
  6. Step 6: Final answer
    x = 10,553.29

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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.