Home / 12,577.99-17,357.96-6,912.90

Finding the Fourth Proportional to 12,577.99, 17,357.96 and 6,912.90

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Solution

The fourth proportional to 12,577.99, 17,357.96 and 6,912.90 is: 9,539.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.99 : 17,357.96 = 6,912.90 : x
  2. Step 2: Convert to fraction form
    12,577.99/17,357.96 = 6,912.90/x
  3. Step 3: Cross multiply
    12,577.99x = 17,357.96 × 6,912.90
  4. Step 4: Simplify right side
    12,577.99x = 119,993,841.68
  5. Step 5: Solve for x
    x = 119,993,841.68/12,577.99
  6. Step 6: Final answer
    x = 9,539.99

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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.