Home / 12,393.34-17,102.85-6,728.10

Finding the Fourth Proportional to 12,393.34, 17,102.85 and 6,728.10

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Solution

The fourth proportional to 12,393.34, 17,102.85 and 6,728.10 is: 9,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,393.34 : 17,102.85 = 6,728.10 : x
  2. Step 2: Convert to fraction form
    12,393.34/17,102.85 = 6,728.10/x
  3. Step 3: Cross multiply
    12,393.34x = 17,102.85 × 6,728.10
  4. Step 4: Simplify right side
    12,393.34x = 115,069,620.95
  5. Step 5: Solve for x
    x = 115,069,620.95/12,393.34
  6. Step 6: Final answer
    x = 9,284.80

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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.