Home / 7,847.20-11,769.92-4,916.64

Finding the Fourth Proportional to 7,847.20, 11,769.92 and 4,916.64

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Solution

The fourth proportional to 7,847.20, 11,769.92 and 4,916.64 is: 7,374.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,847.20 : 11,769.92 = 4,916.64 : x
  2. Step 2: Convert to fraction form
    7,847.20/11,769.92 = 4,916.64/x
  3. Step 3: Cross multiply
    7,847.20x = 11,769.92 × 4,916.64
  4. Step 4: Simplify right side
    7,847.20x = 57,868,459.47
  5. Step 5: Solve for x
    x = 57,868,459.47/7,847.20
  6. Step 6: Final answer
    x = 7,374.41

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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.