Home / 7,845.60-11,774.20-3,165.60

Finding the Fourth Proportional to 7,845.60, 11,774.20 and 3,165.60

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Solution

The fourth proportional to 7,845.60, 11,774.20 and 3,165.60 is: 4,750.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,845.60 : 11,774.20 = 3,165.60 : x
  2. Step 2: Convert to fraction form
    7,845.60/11,774.20 = 3,165.60/x
  3. Step 3: Cross multiply
    7,845.60x = 11,774.20 × 3,165.60
  4. Step 4: Simplify right side
    7,845.60x = 37,272,407.52
  5. Step 5: Solve for x
    x = 37,272,407.52/7,845.60
  6. Step 6: Final answer
    x = 4,750.74

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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.