Home / 11,722.79-16,177.37-6,417.69

Finding the Fourth Proportional to 11,722.79, 16,177.37 and 6,417.69

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Solution

The fourth proportional to 11,722.79, 16,177.37 and 6,417.69 is: 8,856.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.79 : 16,177.37 = 6,417.69 : x
  2. Step 2: Convert to fraction form
    11,722.79/16,177.37 = 6,417.69/x
  3. Step 3: Cross multiply
    11,722.79x = 16,177.37 × 6,417.69
  4. Step 4: Simplify right side
    11,722.79x = 103,821,313.59
  5. Step 5: Solve for x
    x = 103,821,313.59/11,722.79
  6. Step 6: Final answer
    x = 8,856.37

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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.