Home / 10,276.60-15,429.30-8,087.80

Finding the Fourth Proportional to 10,276.60, 15,429.30 and 8,087.80

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Solution

The fourth proportional to 10,276.60, 15,429.30 and 8,087.80 is: 12,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,276.60 : 15,429.30 = 8,087.80 : x
  2. Step 2: Convert to fraction form
    10,276.60/15,429.30 = 8,087.80/x
  3. Step 3: Cross multiply
    10,276.60x = 15,429.30 × 8,087.80
  4. Step 4: Simplify right side
    10,276.60x = 124,789,092.54
  5. Step 5: Solve for x
    x = 124,789,092.54/10,276.60
  6. Step 6: Final answer
    x = 12,143.03

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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.