Home / 12,295.01-18,442.62-7,628.60

Finding the Fourth Proportional to 12,295.01, 18,442.62 and 7,628.60

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Solution

The fourth proportional to 12,295.01, 18,442.62 and 7,628.60 is: 11,442.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.01 : 18,442.62 = 7,628.60 : x
  2. Step 2: Convert to fraction form
    12,295.01/18,442.62 = 7,628.60/x
  3. Step 3: Cross multiply
    12,295.01x = 18,442.62 × 7,628.60
  4. Step 4: Simplify right side
    12,295.01x = 140,691,417.04
  5. Step 5: Solve for x
    x = 140,691,417.04/12,295.01
  6. Step 6: Final answer
    x = 11,442.97

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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.