Home / 12,528.84-17,290.38-6,939.96

Finding the Fourth Proportional to 12,528.84, 17,290.38 and 6,939.96

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Solution

The fourth proportional to 12,528.84, 17,290.38 and 6,939.96 is: 9,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528.84 : 17,290.38 = 6,939.96 : x
  2. Step 2: Convert to fraction form
    12,528.84/17,290.38 = 6,939.96/x
  3. Step 3: Cross multiply
    12,528.84x = 17,290.38 × 6,939.96
  4. Step 4: Simplify right side
    12,528.84x = 119,994,545.58
  5. Step 5: Solve for x
    x = 119,994,545.58/12,528.84
  6. Step 6: Final answer
    x = 9,577.47

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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.