Home / 11,109.28-16,663.80-4,783.36

Finding the Fourth Proportional to 11,109.28, 16,663.80 and 4,783.36

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Solution

The fourth proportional to 11,109.28, 16,663.80 and 4,783.36 is: 7,174.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.28 : 16,663.80 = 4,783.36 : x
  2. Step 2: Convert to fraction form
    11,109.28/16,663.80 = 4,783.36/x
  3. Step 3: Cross multiply
    11,109.28x = 16,663.80 × 4,783.36
  4. Step 4: Simplify right side
    11,109.28x = 79,708,954.37
  5. Step 5: Solve for x
    x = 79,708,954.37/11,109.28
  6. Step 6: Final answer
    x = 7,174.99

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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.