Home / 11,418.23-15,756.47-6,637.82

Finding the Fourth Proportional to 11,418.23, 15,756.47 and 6,637.82

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Solution

The fourth proportional to 11,418.23, 15,756.47 and 6,637.82 is: 9,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.23 : 15,756.47 = 6,637.82 : x
  2. Step 2: Convert to fraction form
    11,418.23/15,756.47 = 6,637.82/x
  3. Step 3: Cross multiply
    11,418.23x = 15,756.47 × 6,637.82
  4. Step 4: Simplify right side
    11,418.23x = 104,588,499.72
  5. Step 5: Solve for x
    x = 104,588,499.72/11,418.23
  6. Step 6: Final answer
    x = 9,159.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.