Home / 12,191.10-18,275.70-4,800.60

Finding the Fourth Proportional to 12,191.10, 18,275.70 and 4,800.60

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Solution

The fourth proportional to 12,191.10, 18,275.70 and 4,800.60 is: 7,196.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.10 : 18,275.70 = 4,800.60 : x
  2. Step 2: Convert to fraction form
    12,191.10/18,275.70 = 4,800.60/x
  3. Step 3: Cross multiply
    12,191.10x = 18,275.70 × 4,800.60
  4. Step 4: Simplify right side
    12,191.10x = 87,734,325.42
  5. Step 5: Solve for x
    x = 87,734,325.42/12,191.10
  6. Step 6: Final answer
    x = 7,196.59

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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.