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Finding the Fourth Proportional to 11,392.04, 15,719.42 and 6,355.66

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Solution

The fourth proportional to 11,392.04, 15,719.42 and 6,355.66 is: 8,769.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.04 : 15,719.42 = 6,355.66 : x
  2. Step 2: Convert to fraction form
    11,392.04/15,719.42 = 6,355.66/x
  3. Step 3: Cross multiply
    11,392.04x = 15,719.42 × 6,355.66
  4. Step 4: Simplify right side
    11,392.04x = 99,907,288.92
  5. Step 5: Solve for x
    x = 99,907,288.92/11,392.04
  6. Step 6: Final answer
    x = 8,769.92

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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.