Home / 12,624.35-18,936.51-5,226.81

Finding the Fourth Proportional to 12,624.35, 18,936.51 and 5,226.81

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Solution

The fourth proportional to 12,624.35, 18,936.51 and 5,226.81 is: 7,840.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,624.35 : 18,936.51 = 5,226.81 : x
  2. Step 2: Convert to fraction form
    12,624.35/18,936.51 = 5,226.81/x
  3. Step 3: Cross multiply
    12,624.35x = 18,936.51 × 5,226.81
  4. Step 4: Simplify right side
    12,624.35x = 98,977,539.83
  5. Step 5: Solve for x
    x = 98,977,539.83/12,624.35
  6. Step 6: Final answer
    x = 7,840.21

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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.