Home / 14,983.79-20,678.96-8,270.87

Finding the Fourth Proportional to 14,983.79, 20,678.96 and 8,270.87

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Solution

The fourth proportional to 14,983.79, 20,678.96 and 8,270.87 is: 11,414.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,983.79 : 20,678.96 = 8,270.87 : x
  2. Step 2: Convert to fraction form
    14,983.79/20,678.96 = 8,270.87/x
  3. Step 3: Cross multiply
    14,983.79x = 20,678.96 × 8,270.87
  4. Step 4: Simplify right side
    14,983.79x = 171,032,948.54
  5. Step 5: Solve for x
    x = 171,032,948.54/14,983.79
  6. Step 6: Final answer
    x = 11,414.53

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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.