Home / 7,013.69-10,520.55-1,819.56

Finding the Fourth Proportional to 7,013.69, 10,520.55 and 1,819.56

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Solution

The fourth proportional to 7,013.69, 10,520.55 and 1,819.56 is: 2,729.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.69 : 10,520.55 = 1,819.56 : x
  2. Step 2: Convert to fraction form
    7,013.69/10,520.55 = 1,819.56/x
  3. Step 3: Cross multiply
    7,013.69x = 10,520.55 × 1,819.56
  4. Step 4: Simplify right side
    7,013.69x = 19,142,811.41
  5. Step 5: Solve for x
    x = 19,142,811.41/7,013.69
  6. Step 6: Final answer
    x = 2,729.35

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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.