Home / 14,921.06-20,591.43-8,206.86

Finding the Fourth Proportional to 14,921.06, 20,591.43 and 8,206.86

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Solution

The fourth proportional to 14,921.06, 20,591.43 and 8,206.86 is: 11,325.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,921.06 : 20,591.43 = 8,206.86 : x
  2. Step 2: Convert to fraction form
    14,921.06/20,591.43 = 8,206.86/x
  3. Step 3: Cross multiply
    14,921.06x = 20,591.43 × 8,206.86
  4. Step 4: Simplify right side
    14,921.06x = 168,990,987.53
  5. Step 5: Solve for x
    x = 168,990,987.53/14,921.06
  6. Step 6: Final answer
    x = 11,325.67

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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.