Home / 14,688.83-20,270.61-7,974.47

Finding the Fourth Proportional to 14,688.83, 20,270.61 and 7,974.47

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Solution

The fourth proportional to 14,688.83, 20,270.61 and 7,974.47 is: 11,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.83 : 20,270.61 = 7,974.47 : x
  2. Step 2: Convert to fraction form
    14,688.83/20,270.61 = 7,974.47/x
  3. Step 3: Cross multiply
    14,688.83x = 20,270.61 × 7,974.47
  4. Step 4: Simplify right side
    14,688.83x = 161,647,371.33
  5. Step 5: Solve for x
    x = 161,647,371.33/14,688.83
  6. Step 6: Final answer
    x = 11,004.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.