Home / 11,722.70-16,177.36-6,417.86

Finding the Fourth Proportional to 11,722.70, 16,177.36 and 6,417.86

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Solution

The fourth proportional to 11,722.70, 16,177.36 and 6,417.86 is: 8,856.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.70 : 16,177.36 = 6,417.86 : x
  2. Step 2: Convert to fraction form
    11,722.70/16,177.36 = 6,417.86/x
  3. Step 3: Cross multiply
    11,722.70x = 16,177.36 × 6,417.86
  4. Step 4: Simplify right side
    11,722.70x = 103,824,056.05
  5. Step 5: Solve for x
    x = 103,824,056.05/11,722.70
  6. Step 6: Final answer
    x = 8,856.67

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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.