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Finding the Fourth Proportional to 12,328.63, 17,013.57 and 6,739.63

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Solution

The fourth proportional to 12,328.63, 17,013.57 and 6,739.63 is: 9,300.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.63 : 17,013.57 = 6,739.63 : x
  2. Step 2: Convert to fraction form
    12,328.63/17,013.57 = 6,739.63/x
  3. Step 3: Cross multiply
    12,328.63x = 17,013.57 × 6,739.63
  4. Step 4: Simplify right side
    12,328.63x = 114,665,166.78
  5. Step 5: Solve for x
    x = 114,665,166.78/12,328.63
  6. Step 6: Final answer
    x = 9,300.72

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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.