Home / 8,763.05-13,139.55-3,218.13

Finding the Fourth Proportional to 8,763.05, 13,139.55 and 3,218.13

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Solution

The fourth proportional to 8,763.05, 13,139.55 and 3,218.13 is: 4,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.05 : 13,139.55 = 3,218.13 : x
  2. Step 2: Convert to fraction form
    8,763.05/13,139.55 = 3,218.13/x
  3. Step 3: Cross multiply
    8,763.05x = 13,139.55 × 3,218.13
  4. Step 4: Simplify right side
    8,763.05x = 42,284,780.04
  5. Step 5: Solve for x
    x = 42,284,780.04/8,763.05
  6. Step 6: Final answer
    x = 4,825.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.