Home / 13,853.00-19,116.70-7,803.54

Finding the Fourth Proportional to 13,853.00, 19,116.70 and 7,803.54

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Solution

The fourth proportional to 13,853.00, 19,116.70 and 7,803.54 is: 10,768.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.00 : 19,116.70 = 7,803.54 : x
  2. Step 2: Convert to fraction form
    13,853.00/19,116.70 = 7,803.54/x
  3. Step 3: Cross multiply
    13,853.00x = 19,116.70 × 7,803.54
  4. Step 4: Simplify right side
    13,853.00x = 149,177,913.61
  5. Step 5: Solve for x
    x = 149,177,913.61/13,853.00
  6. Step 6: Final answer
    x = 10,768.63

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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.