Home / 10,221.37-14,105.51-5,745.13

Finding the Fourth Proportional to 10,221.37, 14,105.51 and 5,745.13

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Solution

The fourth proportional to 10,221.37, 14,105.51 and 5,745.13 is: 7,928.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.37 : 14,105.51 = 5,745.13 : x
  2. Step 2: Convert to fraction form
    10,221.37/14,105.51 = 5,745.13/x
  3. Step 3: Cross multiply
    10,221.37x = 14,105.51 × 5,745.13
  4. Step 4: Simplify right side
    10,221.37x = 81,037,988.67
  5. Step 5: Solve for x
    x = 81,037,988.67/10,221.37
  6. Step 6: Final answer
    x = 7,928.29

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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.