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Finding the Fourth Proportional to 12,360.48, 17,055 and 7,328.49

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Solution

The fourth proportional to 12,360.48, 17,055 and 7,328.49 is: 10,111.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.48 : 17,055 = 7,328.49 : x
  2. Step 2: Convert to fraction form
    12,360.48/17,055 = 7,328.49/x
  3. Step 3: Cross multiply
    12,360.48x = 17,055 × 7,328.49
  4. Step 4: Simplify right side
    12,360.48x = 124,987,396.95
  5. Step 5: Solve for x
    x = 124,987,396.95/12,360.48
  6. Step 6: Final answer
    x = 10,111.86

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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.