Home / 13,711.22-18,919.74-8,041.76

Finding the Fourth Proportional to 13,711.22, 18,919.74 and 8,041.76

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Solution

The fourth proportional to 13,711.22, 18,919.74 and 8,041.76 is: 11,096.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.22 : 18,919.74 = 8,041.76 : x
  2. Step 2: Convert to fraction form
    13,711.22/18,919.74 = 8,041.76/x
  3. Step 3: Cross multiply
    13,711.22x = 18,919.74 × 8,041.76
  4. Step 4: Simplify right side
    13,711.22x = 152,148,008.34
  5. Step 5: Solve for x
    x = 152,148,008.34/13,711.22
  6. Step 6: Final answer
    x = 11,096.61

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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.