Home / 8,859.12-13,285.80-3,015.60

Finding the Fourth Proportional to 8,859.12, 13,285.80 and 3,015.60

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Solution

The fourth proportional to 8,859.12, 13,285.80 and 3,015.60 is: 4,522.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.12 : 13,285.80 = 3,015.60 : x
  2. Step 2: Convert to fraction form
    8,859.12/13,285.80 = 3,015.60/x
  3. Step 3: Cross multiply
    8,859.12x = 13,285.80 × 3,015.60
  4. Step 4: Simplify right side
    8,859.12x = 40,064,658.48
  5. Step 5: Solve for x
    x = 40,064,658.48/8,859.12
  6. Step 6: Final answer
    x = 4,522.42

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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.