Home / 10,739.40-16,100.64-5,191.26

Finding the Fourth Proportional to 10,739.40, 16,100.64 and 5,191.26

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Solution

The fourth proportional to 10,739.40, 16,100.64 and 5,191.26 is: 7,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,739.40 : 16,100.64 = 5,191.26 : x
  2. Step 2: Convert to fraction form
    10,739.40/16,100.64 = 5,191.26/x
  3. Step 3: Cross multiply
    10,739.40x = 16,100.64 × 5,191.26
  4. Step 4: Simplify right side
    10,739.40x = 83,582,608.41
  5. Step 5: Solve for x
    x = 83,582,608.41/10,739.40
  6. Step 6: Final answer
    x = 7,782.80

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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.