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Finding the Fourth Proportional to 7,194.80, 10,808.40 and 7,000.40

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Solution

The fourth proportional to 7,194.80, 10,808.40 and 7,000.40 is: 10,516.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.80 : 10,808.40 = 7,000.40 : x
  2. Step 2: Convert to fraction form
    7,194.80/10,808.40 = 7,000.40/x
  3. Step 3: Cross multiply
    7,194.80x = 10,808.40 × 7,000.40
  4. Step 4: Simplify right side
    7,194.80x = 75,663,123.36
  5. Step 5: Solve for x
    x = 75,663,123.36/7,194.80
  6. Step 6: Final answer
    x = 10,516.36

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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.