Home / 12,732.48-17,569.92-7,144.32

Finding the Fourth Proportional to 12,732.48, 17,569.92 and 7,144.32

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Solution

The fourth proportional to 12,732.48, 17,569.92 and 7,144.32 is: 9,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,732.48 : 17,569.92 = 7,144.32 : x
  2. Step 2: Convert to fraction form
    12,732.48/17,569.92 = 7,144.32/x
  3. Step 3: Cross multiply
    12,732.48x = 17,569.92 × 7,144.32
  4. Step 4: Simplify right side
    12,732.48x = 125,525,130.85
  5. Step 5: Solve for x
    x = 125,525,130.85/12,732.48
  6. Step 6: Final answer
    x = 9,858.66

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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.