Home / 8,139.40-11,231.94-4,603.24

Finding the Fourth Proportional to 8,139.40, 11,231.94 and 4,603.24

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Solution

The fourth proportional to 8,139.40, 11,231.94 and 4,603.24 is: 6,352.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.40 : 11,231.94 = 4,603.24 : x
  2. Step 2: Convert to fraction form
    8,139.40/11,231.94 = 4,603.24/x
  3. Step 3: Cross multiply
    8,139.40x = 11,231.94 × 4,603.24
  4. Step 4: Simplify right side
    8,139.40x = 51,703,315.49
  5. Step 5: Solve for x
    x = 51,703,315.49/8,139.40
  6. Step 6: Final answer
    x = 6,352.23

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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.