Home / 7,783.72-11,671.26-2,586.76

Finding the Fourth Proportional to 7,783.72, 11,671.26 and 2,586.76

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Solution

The fourth proportional to 7,783.72, 11,671.26 and 2,586.76 is: 3,878.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783.72 : 11,671.26 = 2,586.76 : x
  2. Step 2: Convert to fraction form
    7,783.72/11,671.26 = 2,586.76/x
  3. Step 3: Cross multiply
    7,783.72x = 11,671.26 × 2,586.76
  4. Step 4: Simplify right side
    7,783.72x = 30,190,748.52
  5. Step 5: Solve for x
    x = 30,190,748.52/7,783.72
  6. Step 6: Final answer
    x = 3,878.70

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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.