Home / 12,785.60-19,183.80-6,208.40

Finding the Fourth Proportional to 12,785.60, 19,183.80 and 6,208.40

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Solution

The fourth proportional to 12,785.60, 19,183.80 and 6,208.40 is: 9,315.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,785.60 : 19,183.80 = 6,208.40 : x
  2. Step 2: Convert to fraction form
    12,785.60/19,183.80 = 6,208.40/x
  3. Step 3: Cross multiply
    12,785.60x = 19,183.80 × 6,208.40
  4. Step 4: Simplify right side
    12,785.60x = 119,100,703.92
  5. Step 5: Solve for x
    x = 119,100,703.92/12,785.60
  6. Step 6: Final answer
    x = 9,315.22

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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.