Home / 9,339.19-13,993.21-7,678.43

Finding the Fourth Proportional to 9,339.19, 13,993.21 and 7,678.43

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Solution

The fourth proportional to 9,339.19, 13,993.21 and 7,678.43 is: 11,504.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,339.19 : 13,993.21 = 7,678.43 : x
  2. Step 2: Convert to fraction form
    9,339.19/13,993.21 = 7,678.43/x
  3. Step 3: Cross multiply
    9,339.19x = 13,993.21 × 7,678.43
  4. Step 4: Simplify right side
    9,339.19x = 107,445,962.14
  5. Step 5: Solve for x
    x = 107,445,962.14/9,339.19
  6. Step 6: Final answer
    x = 11,504.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.