Home / 12,416.55-18,620.87-4,095.02

Finding the Fourth Proportional to 12,416.55, 18,620.87 and 4,095.02

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Solution

The fourth proportional to 12,416.55, 18,620.87 and 4,095.02 is: 6,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.55 : 18,620.87 = 4,095.02 : x
  2. Step 2: Convert to fraction form
    12,416.55/18,620.87 = 4,095.02/x
  3. Step 3: Cross multiply
    12,416.55x = 18,620.87 × 4,095.02
  4. Step 4: Simplify right side
    12,416.55x = 76,252,721.49
  5. Step 5: Solve for x
    x = 76,252,721.49/12,416.55
  6. Step 6: Final answer
    x = 6,141.22

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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.