Home / 11,376.72-15,698.88-6,900.66

Finding the Fourth Proportional to 11,376.72, 15,698.88 and 6,900.66

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Solution

The fourth proportional to 11,376.72, 15,698.88 and 6,900.66 is: 9,522.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,376.72 : 15,698.88 = 6,900.66 : x
  2. Step 2: Convert to fraction form
    11,376.72/15,698.88 = 6,900.66/x
  3. Step 3: Cross multiply
    11,376.72x = 15,698.88 × 6,900.66
  4. Step 4: Simplify right side
    11,376.72x = 108,332,633.26
  5. Step 5: Solve for x
    x = 108,332,633.26/11,376.72
  6. Step 6: Final answer
    x = 9,522.31

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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.