Home / 11,686.51-17,519.37-4,289.28

Finding the Fourth Proportional to 11,686.51, 17,519.37 and 4,289.28

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Solution

The fourth proportional to 11,686.51, 17,519.37 and 4,289.28 is: 6,430.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.51 : 17,519.37 = 4,289.28 : x
  2. Step 2: Convert to fraction form
    11,686.51/17,519.37 = 4,289.28/x
  3. Step 3: Cross multiply
    11,686.51x = 17,519.37 × 4,289.28
  4. Step 4: Simplify right side
    11,686.51x = 75,145,483.35
  5. Step 5: Solve for x
    x = 75,145,483.35/11,686.51
  6. Step 6: Final answer
    x = 6,430.10

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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.