Home / 10,221.53-14,106.15-5,745.06

Finding the Fourth Proportional to 10,221.53, 14,106.15 and 5,745.06

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Solution

The fourth proportional to 10,221.53, 14,106.15 and 5,745.06 is: 7,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,221.53 : 14,106.15 = 5,745.06 : x
  2. Step 2: Convert to fraction form
    10,221.53/14,106.15 = 5,745.06/x
  3. Step 3: Cross multiply
    10,221.53x = 14,106.15 × 5,745.06
  4. Step 4: Simplify right side
    10,221.53x = 81,040,678.12
  5. Step 5: Solve for x
    x = 81,040,678.12/10,221.53
  6. Step 6: Final answer
    x = 7,928.43

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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.