Home / 11,474.41-15,836.47-6,440.67

Finding the Fourth Proportional to 11,474.41, 15,836.47 and 6,440.67

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Solution

The fourth proportional to 11,474.41, 15,836.47 and 6,440.67 is: 8,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,474.41 : 15,836.47 = 6,440.67 : x
  2. Step 2: Convert to fraction form
    11,474.41/15,836.47 = 6,440.67/x
  3. Step 3: Cross multiply
    11,474.41x = 15,836.47 × 6,440.67
  4. Step 4: Simplify right side
    11,474.41x = 101,997,398.05
  5. Step 5: Solve for x
    x = 101,997,398.05/11,474.41
  6. Step 6: Final answer
    x = 8,889.12

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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.