Home / 11,104.50-15,330.88-6,918.42

Finding the Fourth Proportional to 11,104.50, 15,330.88 and 6,918.42

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Solution

The fourth proportional to 11,104.50, 15,330.88 and 6,918.42 is: 9,551.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,104.50 : 15,330.88 = 6,918.42 : x
  2. Step 2: Convert to fraction form
    11,104.50/15,330.88 = 6,918.42/x
  3. Step 3: Cross multiply
    11,104.50x = 15,330.88 × 6,918.42
  4. Step 4: Simplify right side
    11,104.50x = 106,065,466.81
  5. Step 5: Solve for x
    x = 106,065,466.81/11,104.50
  6. Step 6: Final answer
    x = 9,551.58

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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.