Home / 7,011.50-10,517.26-2,853.78

Finding the Fourth Proportional to 7,011.50, 10,517.26 and 2,853.78

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Solution

The fourth proportional to 7,011.50, 10,517.26 and 2,853.78 is: 4,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,011.50 : 10,517.26 = 2,853.78 : x
  2. Step 2: Convert to fraction form
    7,011.50/10,517.26 = 2,853.78/x
  3. Step 3: Cross multiply
    7,011.50x = 10,517.26 × 2,853.78
  4. Step 4: Simplify right side
    7,011.50x = 30,013,946.24
  5. Step 5: Solve for x
    x = 30,013,946.24/7,011.50
  6. Step 6: Final answer
    x = 4,280.67

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Double scale
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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.