Home / 11,135.90-16,693.79-5,210.48

Finding the Fourth Proportional to 11,135.90, 16,693.79 and 5,210.48

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Solution

The fourth proportional to 11,135.90, 16,693.79 and 5,210.48 is: 7,811.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.90 : 16,693.79 = 5,210.48 : x
  2. Step 2: Convert to fraction form
    11,135.90/16,693.79 = 5,210.48/x
  3. Step 3: Cross multiply
    11,135.90x = 16,693.79 × 5,210.48
  4. Step 4: Simplify right side
    11,135.90x = 86,982,549.40
  5. Step 5: Solve for x
    x = 86,982,549.40/11,135.90
  6. Step 6: Final answer
    x = 7,811.01

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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.