Home / 11,126-15,359.42-6,409.36

Finding the Fourth Proportional to 11,126, 15,359.42 and 6,409.36

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Solution

The fourth proportional to 11,126, 15,359.42 and 6,409.36 is: 8,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,126 : 15,359.42 = 6,409.36 : x
  2. Step 2: Convert to fraction form
    11,126/15,359.42 = 6,409.36/x
  3. Step 3: Cross multiply
    11,126x = 15,359.42 × 6,409.36
  4. Step 4: Simplify right side
    11,126x = 98,444,052.17
  5. Step 5: Solve for x
    x = 98,444,052.17/11,126
  6. Step 6: Final answer
    x = 8,848.11

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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.