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Finding the Fourth Proportional to 12,368.98, 17,069.17 and 6,780.02

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Solution

The fourth proportional to 12,368.98, 17,069.17 and 6,780.02 is: 9,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.98 : 17,069.17 = 6,780.02 : x
  2. Step 2: Convert to fraction form
    12,368.98/17,069.17 = 6,780.02/x
  3. Step 3: Cross multiply
    12,368.98x = 17,069.17 × 6,780.02
  4. Step 4: Simplify right side
    12,368.98x = 115,729,313.98
  5. Step 5: Solve for x
    x = 115,729,313.98/12,368.98
  6. Step 6: Final answer
    x = 9,356.42

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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.