Home / 8,782.95-13,179.66-3,240.27

Finding the Fourth Proportional to 8,782.95, 13,179.66 and 3,240.27

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Solution

The fourth proportional to 8,782.95, 13,179.66 and 3,240.27 is: 4,862.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.95 : 13,179.66 = 3,240.27 : x
  2. Step 2: Convert to fraction form
    8,782.95/13,179.66 = 3,240.27/x
  3. Step 3: Cross multiply
    8,782.95x = 13,179.66 × 3,240.27
  4. Step 4: Simplify right side
    8,782.95x = 42,705,574.81
  5. Step 5: Solve for x
    x = 42,705,574.81/8,782.95
  6. Step 6: Final answer
    x = 4,862.33

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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.