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Finding the Fourth Proportional to 12,347.63, 17,039.72 and 6,758.63

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Solution

The fourth proportional to 12,347.63, 17,039.72 and 6,758.63 is: 9,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.63 : 17,039.72 = 6,758.63 : x
  2. Step 2: Convert to fraction form
    12,347.63/17,039.72 = 6,758.63/x
  3. Step 3: Cross multiply
    12,347.63x = 17,039.72 × 6,758.63
  4. Step 4: Simplify right side
    12,347.63x = 115,165,094.48
  5. Step 5: Solve for x
    x = 115,165,094.48/12,347.63
  6. Step 6: Final answer
    x = 9,326.90

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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.