Home / 11,185.70-16,778.75-4,607.28

Finding the Fourth Proportional to 11,185.70, 16,778.75 and 4,607.28

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Solution

The fourth proportional to 11,185.70, 16,778.75 and 4,607.28 is: 6,911.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,185.70 : 16,778.75 = 4,607.28 : x
  2. Step 2: Convert to fraction form
    11,185.70/16,778.75 = 4,607.28/x
  3. Step 3: Cross multiply
    11,185.70x = 16,778.75 × 4,607.28
  4. Step 4: Simplify right side
    11,185.70x = 77,304,376.26
  5. Step 5: Solve for x
    x = 77,304,376.26/11,185.70
  6. Step 6: Final answer
    x = 6,911.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.