Home / 11,722.79-16,178.55-7,006.97

Finding the Fourth Proportional to 11,722.79, 16,178.55 and 7,006.97

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Solution

The fourth proportional to 11,722.79, 16,178.55 and 7,006.97 is: 9,670.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.79 : 16,178.55 = 7,006.97 : x
  2. Step 2: Convert to fraction form
    11,722.79/16,178.55 = 7,006.97/x
  3. Step 3: Cross multiply
    11,722.79x = 16,178.55 × 7,006.97
  4. Step 4: Simplify right side
    11,722.79x = 113,362,614.49
  5. Step 5: Solve for x
    x = 113,362,614.49/11,722.79
  6. Step 6: Final answer
    x = 9,670.28

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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.