Home / 14,688.82-20,270.24-7,974.46

Finding the Fourth Proportional to 14,688.82, 20,270.24 and 7,974.46

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Solution

The fourth proportional to 14,688.82, 20,270.24 and 7,974.46 is: 11,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.82 : 20,270.24 = 7,974.46 : x
  2. Step 2: Convert to fraction form
    14,688.82/20,270.24 = 7,974.46/x
  3. Step 3: Cross multiply
    14,688.82x = 20,270.24 × 7,974.46
  4. Step 4: Simplify right side
    14,688.82x = 161,644,218.07
  5. Step 5: Solve for x
    x = 161,644,218.07/14,688.82
  6. Step 6: Final answer
    x = 11,004.57

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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.