Home / 13,236.56-18,265.16-7,647.44

Finding the Fourth Proportional to 13,236.56, 18,265.16 and 7,647.44

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Solution

The fourth proportional to 13,236.56, 18,265.16 and 7,647.44 is: 10,552.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.56 : 18,265.16 = 7,647.44 : x
  2. Step 2: Convert to fraction form
    13,236.56/18,265.16 = 7,647.44/x
  3. Step 3: Cross multiply
    13,236.56x = 18,265.16 × 7,647.44
  4. Step 4: Simplify right side
    13,236.56x = 139,681,715.19
  5. Step 5: Solve for x
    x = 139,681,715.19/13,236.56
  6. Step 6: Final answer
    x = 10,552.72

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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.