Home / 8,156.10-12,224.70-3,764.40

Finding the Fourth Proportional to 8,156.10, 12,224.70 and 3,764.40

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Solution

The fourth proportional to 8,156.10, 12,224.70 and 3,764.40 is: 5,642.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.10 : 12,224.70 = 3,764.40 : x
  2. Step 2: Convert to fraction form
    8,156.10/12,224.70 = 3,764.40/x
  3. Step 3: Cross multiply
    8,156.10x = 12,224.70 × 3,764.40
  4. Step 4: Simplify right side
    8,156.10x = 46,018,660.68
  5. Step 5: Solve for x
    x = 46,018,660.68/8,156.10
  6. Step 6: Final answer
    x = 5,642.24

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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.