Home / 7,427.40-11,056.20-7,316.70

Finding the Fourth Proportional to 7,427.40, 11,056.20 and 7,316.70

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Solution

The fourth proportional to 7,427.40, 11,056.20 and 7,316.70 is: 10,891.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,427.40 : 11,056.20 = 7,316.70 : x
  2. Step 2: Convert to fraction form
    7,427.40/11,056.20 = 7,316.70/x
  3. Step 3: Cross multiply
    7,427.40x = 11,056.20 × 7,316.70
  4. Step 4: Simplify right side
    7,427.40x = 80,894,898.54
  5. Step 5: Solve for x
    x = 80,894,898.54/7,427.40
  6. Step 6: Final answer
    x = 10,891.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.