Home / 12,847.60-19,271.40-6,626.80

Finding the Fourth Proportional to 12,847.60, 19,271.40 and 6,626.80

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Solution

The fourth proportional to 12,847.60, 19,271.40 and 6,626.80 is: 9,940.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,847.60 : 19,271.40 = 6,626.80 : x
  2. Step 2: Convert to fraction form
    12,847.60/19,271.40 = 6,626.80/x
  3. Step 3: Cross multiply
    12,847.60x = 19,271.40 × 6,626.80
  4. Step 4: Simplify right side
    12,847.60x = 127,707,713.52
  5. Step 5: Solve for x
    x = 127,707,713.52/12,847.60
  6. Step 6: Final answer
    x = 9,940.20

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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.