Home / 8,139.30-11,230.77-4,554.33

Finding the Fourth Proportional to 8,139.30, 11,230.77 and 4,554.33

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Solution

The fourth proportional to 8,139.30, 11,230.77 and 4,554.33 is: 6,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.30 : 11,230.77 = 4,554.33 : x
  2. Step 2: Convert to fraction form
    8,139.30/11,230.77 = 4,554.33/x
  3. Step 3: Cross multiply
    8,139.30x = 11,230.77 × 4,554.33
  4. Step 4: Simplify right side
    8,139.30x = 51,148,632.73
  5. Step 5: Solve for x
    x = 51,148,632.73/8,139.30
  6. Step 6: Final answer
    x = 6,284.16

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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.