Home / 12,416.25-18,620.40-4,094.40

Finding the Fourth Proportional to 12,416.25, 18,620.40 and 4,094.40

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Solution

The fourth proportional to 12,416.25, 18,620.40 and 4,094.40 is: 6,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.25 : 18,620.40 = 4,094.40 : x
  2. Step 2: Convert to fraction form
    12,416.25/18,620.40 = 4,094.40/x
  3. Step 3: Cross multiply
    12,416.25x = 18,620.40 × 4,094.40
  4. Step 4: Simplify right side
    12,416.25x = 76,239,365.76
  5. Step 5: Solve for x
    x = 76,239,365.76/12,416.25
  6. Step 6: Final answer
    x = 6,140.29

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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.