Home / 11,469.32-15,828.88-6,434

Finding the Fourth Proportional to 11,469.32, 15,828.88 and 6,434

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Solution

The fourth proportional to 11,469.32, 15,828.88 and 6,434 is: 8,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,469.32 : 15,828.88 = 6,434 : x
  2. Step 2: Convert to fraction form
    11,469.32/15,828.88 = 6,434/x
  3. Step 3: Cross multiply
    11,469.32x = 15,828.88 × 6,434
  4. Step 4: Simplify right side
    11,469.32x = 101,843,013.92
  5. Step 5: Solve for x
    x = 101,843,013.92/11,469.32
  6. Step 6: Final answer
    x = 8,879.60

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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.