Home / 12,442.96-17,166.36-8,665.12

Finding the Fourth Proportional to 12,442.96, 17,166.36 and 8,665.12

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Solution

The fourth proportional to 12,442.96, 17,166.36 and 8,665.12 is: 11,954.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,442.96 : 17,166.36 = 8,665.12 : x
  2. Step 2: Convert to fraction form
    12,442.96/17,166.36 = 8,665.12/x
  3. Step 3: Cross multiply
    12,442.96x = 17,166.36 × 8,665.12
  4. Step 4: Simplify right side
    12,442.96x = 148,748,569.36
  5. Step 5: Solve for x
    x = 148,748,569.36/12,442.96
  6. Step 6: Final answer
    x = 11,954.44

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1.5x scale

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.