Home / 7,015.20-10,511.87-3,316.74

Finding the Fourth Proportional to 7,015.20, 10,511.87 and 3,316.74

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Solution

The fourth proportional to 7,015.20, 10,511.87 and 3,316.74 is: 4,969.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.20 : 10,511.87 = 3,316.74 : x
  2. Step 2: Convert to fraction form
    7,015.20/10,511.87 = 3,316.74/x
  3. Step 3: Cross multiply
    7,015.20x = 10,511.87 × 3,316.74
  4. Step 4: Simplify right side
    7,015.20x = 34,865,123.12
  5. Step 5: Solve for x
    x = 34,865,123.12/7,015.20
  6. Step 6: Final answer
    x = 4,969.94

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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.