Home / 7,819.21-10,789.93-4,835.12

Finding the Fourth Proportional to 7,819.21, 10,789.93 and 4,835.12

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Solution

The fourth proportional to 7,819.21, 10,789.93 and 4,835.12 is: 6,672.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,819.21 : 10,789.93 = 4,835.12 : x
  2. Step 2: Convert to fraction form
    7,819.21/10,789.93 = 4,835.12/x
  3. Step 3: Cross multiply
    7,819.21x = 10,789.93 × 4,835.12
  4. Step 4: Simplify right side
    7,819.21x = 52,170,606.34
  5. Step 5: Solve for x
    x = 52,170,606.34/7,819.21
  6. Step 6: Final answer
    x = 6,672.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.