Home / 7,766.40-11,657.70-4,485.90

Finding the Fourth Proportional to 7,766.40, 11,657.70 and 4,485.90

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Solution

The fourth proportional to 7,766.40, 11,657.70 and 4,485.90 is: 6,733.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.40 : 11,657.70 = 4,485.90 : x
  2. Step 2: Convert to fraction form
    7,766.40/11,657.70 = 4,485.90/x
  3. Step 3: Cross multiply
    7,766.40x = 11,657.70 × 4,485.90
  4. Step 4: Simplify right side
    7,766.40x = 52,295,276.43
  5. Step 5: Solve for x
    x = 52,295,276.43/7,766.40
  6. Step 6: Final answer
    x = 6,733.53

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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.