Home / 11,118.75-15,343.88-6,927

Finding the Fourth Proportional to 11,118.75, 15,343.88 and 6,927

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Solution

The fourth proportional to 11,118.75, 15,343.88 and 6,927 is: 9,559.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.75 : 15,343.88 = 6,927 : x
  2. Step 2: Convert to fraction form
    11,118.75/15,343.88 = 6,927/x
  3. Step 3: Cross multiply
    11,118.75x = 15,343.88 × 6,927
  4. Step 4: Simplify right side
    11,118.75x = 106,287,056.76
  5. Step 5: Solve for x
    x = 106,287,056.76/11,118.75
  6. Step 6: Final answer
    x = 9,559.26

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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.