Home / 11,186.54-15,438.84-6,470.72

Finding the Fourth Proportional to 11,186.54, 15,438.84 and 6,470.72

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Solution

The fourth proportional to 11,186.54, 15,438.84 and 6,470.72 is: 8,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,186.54 : 15,438.84 = 6,470.72 : x
  2. Step 2: Convert to fraction form
    11,186.54/15,438.84 = 6,470.72/x
  3. Step 3: Cross multiply
    11,186.54x = 15,438.84 × 6,470.72
  4. Step 4: Simplify right side
    11,186.54x = 99,900,410.76
  5. Step 5: Solve for x
    x = 99,900,410.76/11,186.54
  6. Step 6: Final answer
    x = 8,930.41

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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.