Home / 11,440.09-15,787.36-6,404.52

Finding the Fourth Proportional to 11,440.09, 15,787.36 and 6,404.52

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Solution

The fourth proportional to 11,440.09, 15,787.36 and 6,404.52 is: 8,838.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.09 : 15,787.36 = 6,404.52 : x
  2. Step 2: Convert to fraction form
    11,440.09/15,787.36 = 6,404.52/x
  3. Step 3: Cross multiply
    11,440.09x = 15,787.36 × 6,404.52
  4. Step 4: Simplify right side
    11,440.09x = 101,110,405.25
  5. Step 5: Solve for x
    x = 101,110,405.25/11,440.09
  6. Step 6: Final answer
    x = 8,838.26

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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.