Home / 8,226.81-11,355.90-4,870.80

Finding the Fourth Proportional to 8,226.81, 11,355.90 and 4,870.80

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Solution

The fourth proportional to 8,226.81, 11,355.90 and 4,870.80 is: 6,723.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,226.81 : 11,355.90 = 4,870.80 : x
  2. Step 2: Convert to fraction form
    8,226.81/11,355.90 = 4,870.80/x
  3. Step 3: Cross multiply
    8,226.81x = 11,355.90 × 4,870.80
  4. Step 4: Simplify right side
    8,226.81x = 55,312,317.72
  5. Step 5: Solve for x
    x = 55,312,317.72/8,226.81
  6. Step 6: Final answer
    x = 6,723.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.