Home / 14,942.79-20,617.89-8,571.42

Finding the Fourth Proportional to 14,942.79, 20,617.89 and 8,571.42

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Solution

The fourth proportional to 14,942.79, 20,617.89 and 8,571.42 is: 11,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.79 : 20,617.89 = 8,571.42 : x
  2. Step 2: Convert to fraction form
    14,942.79/20,617.89 = 8,571.42/x
  3. Step 3: Cross multiply
    14,942.79x = 20,617.89 × 8,571.42
  4. Step 4: Simplify right side
    14,942.79x = 176,724,594.70
  5. Step 5: Solve for x
    x = 176,724,594.70/14,942.79
  6. Step 6: Final answer
    x = 11,826.75

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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.