Home / 7,825.38-11,677.40-6,994.50

Finding the Fourth Proportional to 7,825.38, 11,677.40 and 6,994.50

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Solution

The fourth proportional to 7,825.38, 11,677.40 and 6,994.50 is: 10,437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.38 : 11,677.40 = 6,994.50 : x
  2. Step 2: Convert to fraction form
    7,825.38/11,677.40 = 6,994.50/x
  3. Step 3: Cross multiply
    7,825.38x = 11,677.40 × 6,994.50
  4. Step 4: Simplify right side
    7,825.38x = 81,677,539.33
  5. Step 5: Solve for x
    x = 81,677,539.33/7,825.38
  6. Step 6: Final answer
    x = 10,437.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.