Home / 11,216.20-15,478.40-6,180.18

Finding the Fourth Proportional to 11,216.20, 15,478.40 and 6,180.18

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Solution

The fourth proportional to 11,216.20, 15,478.40 and 6,180.18 is: 8,528.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,216.20 : 15,478.40 = 6,180.18 : x
  2. Step 2: Convert to fraction form
    11,216.20/15,478.40 = 6,180.18/x
  3. Step 3: Cross multiply
    11,216.20x = 15,478.40 × 6,180.18
  4. Step 4: Simplify right side
    11,216.20x = 95,659,298.11
  5. Step 5: Solve for x
    x = 95,659,298.11/11,216.20
  6. Step 6: Final answer
    x = 8,528.67

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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.