Home / 9,396.05-12,940.30-9,191.93

Finding the Fourth Proportional to 9,396.05, 12,940.30 and 9,191.93

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Solution

The fourth proportional to 9,396.05, 12,940.30 and 9,191.93 is: 12,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396.05 : 12,940.30 = 9,191.93 : x
  2. Step 2: Convert to fraction form
    9,396.05/12,940.30 = 9,191.93/x
  3. Step 3: Cross multiply
    9,396.05x = 12,940.30 × 9,191.93
  4. Step 4: Simplify right side
    9,396.05x = 118,946,331.78
  5. Step 5: Solve for x
    x = 118,946,331.78/9,396.05
  6. Step 6: Final answer
    x = 12,659.18

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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.