Home / 11,239.80-16,851.60-7,346.40

Finding the Fourth Proportional to 11,239.80, 16,851.60 and 7,346.40

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Solution

The fourth proportional to 11,239.80, 16,851.60 and 7,346.40 is: 11,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.80 : 16,851.60 = 7,346.40 : x
  2. Step 2: Convert to fraction form
    11,239.80/16,851.60 = 7,346.40/x
  3. Step 3: Cross multiply
    11,239.80x = 16,851.60 × 7,346.40
  4. Step 4: Simplify right side
    11,239.80x = 123,798,594.24
  5. Step 5: Solve for x
    x = 123,798,594.24/11,239.80
  6. Step 6: Final answer
    x = 11,014.31

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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.