Home / 12,577.89-17,357.40-6,912.69

Finding the Fourth Proportional to 12,577.89, 17,357.40 and 6,912.69

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Solution

The fourth proportional to 12,577.89, 17,357.40 and 6,912.69 is: 9,539.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.89 : 17,357.40 = 6,912.69 : x
  2. Step 2: Convert to fraction form
    12,577.89/17,357.40 = 6,912.69/x
  3. Step 3: Cross multiply
    12,577.89x = 17,357.40 × 6,912.69
  4. Step 4: Simplify right side
    12,577.89x = 119,986,325.41
  5. Step 5: Solve for x
    x = 119,986,325.41/12,577.89
  6. Step 6: Final answer
    x = 9,539.46

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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.