Home / 15,194.12-20,967.84-8,479.67

Finding the Fourth Proportional to 15,194.12, 20,967.84 and 8,479.67

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Solution

The fourth proportional to 15,194.12, 20,967.84 and 8,479.67 is: 11,701.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.12 : 20,967.84 = 8,479.67 : x
  2. Step 2: Convert to fraction form
    15,194.12/20,967.84 = 8,479.67/x
  3. Step 3: Cross multiply
    15,194.12x = 20,967.84 × 8,479.67
  4. Step 4: Simplify right side
    15,194.12x = 177,800,363.81
  5. Step 5: Solve for x
    x = 177,800,363.81/15,194.12
  6. Step 6: Final answer
    x = 11,701.92

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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.