Home / 8,687.90-13,030.63-2,843.75

Finding the Fourth Proportional to 8,687.90, 13,030.63 and 2,843.75

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Solution

The fourth proportional to 8,687.90, 13,030.63 and 2,843.75 is: 4,265.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.90 : 13,030.63 = 2,843.75 : x
  2. Step 2: Convert to fraction form
    8,687.90/13,030.63 = 2,843.75/x
  3. Step 3: Cross multiply
    8,687.90x = 13,030.63 × 2,843.75
  4. Step 4: Simplify right side
    8,687.90x = 37,055,854.06
  5. Step 5: Solve for x
    x = 37,055,854.06/8,687.90
  6. Step 6: Final answer
    x = 4,265.23

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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.