Home / 11,355.14-15,670.14-6,638.52

Finding the Fourth Proportional to 11,355.14, 15,670.14 and 6,638.52

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Solution

The fourth proportional to 11,355.14, 15,670.14 and 6,638.52 is: 9,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,355.14 : 15,670.14 = 6,638.52 : x
  2. Step 2: Convert to fraction form
    11,355.14/15,670.14 = 6,638.52/x
  3. Step 3: Cross multiply
    11,355.14x = 15,670.14 × 6,638.52
  4. Step 4: Simplify right side
    11,355.14x = 104,026,537.79
  5. Step 5: Solve for x
    x = 104,026,537.79/11,355.14
  6. Step 6: Final answer
    x = 9,161.18

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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.