Home / 8,862.40-13,290.24-2,620.80

Finding the Fourth Proportional to 8,862.40, 13,290.24 and 2,620.80

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Solution

The fourth proportional to 8,862.40, 13,290.24 and 2,620.80 is: 3,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.40 : 13,290.24 = 2,620.80 : x
  2. Step 2: Convert to fraction form
    8,862.40/13,290.24 = 2,620.80/x
  3. Step 3: Cross multiply
    8,862.40x = 13,290.24 × 2,620.80
  4. Step 4: Simplify right side
    8,862.40x = 34,831,060.99
  5. Step 5: Solve for x
    x = 34,831,060.99/8,862.40
  6. Step 6: Final answer
    x = 3,930.21

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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.