Home / 9,376.21-12,929.79-6,858.73

Finding the Fourth Proportional to 9,376.21, 12,929.79 and 6,858.73

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Solution

The fourth proportional to 9,376.21, 12,929.79 and 6,858.73 is: 9,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.21 : 12,929.79 = 6,858.73 : x
  2. Step 2: Convert to fraction form
    9,376.21/12,929.79 = 6,858.73/x
  3. Step 3: Cross multiply
    9,376.21x = 12,929.79 × 6,858.73
  4. Step 4: Simplify right side
    9,376.21x = 88,681,938.57
  5. Step 5: Solve for x
    x = 88,681,938.57/9,376.21
  6. Step 6: Final answer
    x = 9,458.19

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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.