Home / 7,856.22-11,783.61-3,174.90

Finding the Fourth Proportional to 7,856.22, 11,783.61 and 3,174.90

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Solution

The fourth proportional to 7,856.22, 11,783.61 and 3,174.90 is: 4,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.22 : 11,783.61 = 3,174.90 : x
  2. Step 2: Convert to fraction form
    7,856.22/11,783.61 = 3,174.90/x
  3. Step 3: Cross multiply
    7,856.22x = 11,783.61 × 3,174.90
  4. Step 4: Simplify right side
    7,856.22x = 37,411,805.48
  5. Step 5: Solve for x
    x = 37,411,805.48/7,856.22
  6. Step 6: Final answer
    x = 4,762.06

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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.