Home / 10,485.20-15,766.20-8,795.60

Finding the Fourth Proportional to 10,485.20, 15,766.20 and 8,795.60

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Solution

The fourth proportional to 10,485.20, 15,766.20 and 8,795.60 is: 13,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,485.20 : 15,766.20 = 8,795.60 : x
  2. Step 2: Convert to fraction form
    10,485.20/15,766.20 = 8,795.60/x
  3. Step 3: Cross multiply
    10,485.20x = 15,766.20 × 8,795.60
  4. Step 4: Simplify right side
    10,485.20x = 138,673,188.72
  5. Step 5: Solve for x
    x = 138,673,188.72/10,485.20
  6. Step 6: Final answer
    x = 13,225.61

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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.