Home / 8,416.23-12,619.96-3,146.91

Finding the Fourth Proportional to 8,416.23, 12,619.96 and 3,146.91

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Solution

The fourth proportional to 8,416.23, 12,619.96 and 3,146.91 is: 4,718.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.23 : 12,619.96 = 3,146.91 : x
  2. Step 2: Convert to fraction form
    8,416.23/12,619.96 = 3,146.91/x
  3. Step 3: Cross multiply
    8,416.23x = 12,619.96 × 3,146.91
  4. Step 4: Simplify right side
    8,416.23x = 39,713,878.32
  5. Step 5: Solve for x
    x = 39,713,878.32/8,416.23
  6. Step 6: Final answer
    x = 4,718.73

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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.