Home / 7,162.20-10,730.60-6,111.54

Finding the Fourth Proportional to 7,162.20, 10,730.60 and 6,111.54

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Solution

The fourth proportional to 7,162.20, 10,730.60 and 6,111.54 is: 9,156.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.20 : 10,730.60 = 6,111.54 : x
  2. Step 2: Convert to fraction form
    7,162.20/10,730.60 = 6,111.54/x
  3. Step 3: Cross multiply
    7,162.20x = 10,730.60 × 6,111.54
  4. Step 4: Simplify right side
    7,162.20x = 65,580,460.57
  5. Step 5: Solve for x
    x = 65,580,460.57/7,162.20
  6. Step 6: Final answer
    x = 9,156.47

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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.