Home / 9,438.24-13,028.40-6,293.28

Finding the Fourth Proportional to 9,438.24, 13,028.40 and 6,293.28

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Solution

The fourth proportional to 9,438.24, 13,028.40 and 6,293.28 is: 8,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.24 : 13,028.40 = 6,293.28 : x
  2. Step 2: Convert to fraction form
    9,438.24/13,028.40 = 6,293.28/x
  3. Step 3: Cross multiply
    9,438.24x = 13,028.40 × 6,293.28
  4. Step 4: Simplify right side
    9,438.24x = 81,991,369.15
  5. Step 5: Solve for x
    x = 81,991,369.15/9,438.24
  6. Step 6: Final answer
    x = 8,687.15

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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.