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Finding the Fourth Proportional to 12,603.39, 17,393.45 and 7,014.39

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Solution

The fourth proportional to 12,603.39, 17,393.45 and 7,014.39 is: 9,680.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603.39 : 17,393.45 = 7,014.39 : x
  2. Step 2: Convert to fraction form
    12,603.39/17,393.45 = 7,014.39/x
  3. Step 3: Cross multiply
    12,603.39x = 17,393.45 × 7,014.39
  4. Step 4: Simplify right side
    12,603.39x = 122,004,406.67
  5. Step 5: Solve for x
    x = 122,004,406.67/12,603.39
  6. Step 6: Final answer
    x = 9,680.28

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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.