Home / 7,013.88-10,520.89-1,819.76

Finding the Fourth Proportional to 7,013.88, 10,520.89 and 1,819.76

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Solution

The fourth proportional to 7,013.88, 10,520.89 and 1,819.76 is: 2,729.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,013.88 : 10,520.89 = 1,819.76 : x
  2. Step 2: Convert to fraction form
    7,013.88/10,520.89 = 1,819.76/x
  3. Step 3: Cross multiply
    7,013.88x = 10,520.89 × 1,819.76
  4. Step 4: Simplify right side
    7,013.88x = 19,145,437.63
  5. Step 5: Solve for x
    x = 19,145,437.63/7,013.88
  6. Step 6: Final answer
    x = 2,729.65

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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.