Home / 12,808.70-19,215.73-4,488.99

Finding the Fourth Proportional to 12,808.70, 19,215.73 and 4,488.99

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Solution

The fourth proportional to 12,808.70, 19,215.73 and 4,488.99 is: 6,734.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,808.70 : 19,215.73 = 4,488.99 : x
  2. Step 2: Convert to fraction form
    12,808.70/19,215.73 = 4,488.99/x
  3. Step 3: Cross multiply
    12,808.70x = 19,215.73 × 4,488.99
  4. Step 4: Simplify right side
    12,808.70x = 86,259,219.81
  5. Step 5: Solve for x
    x = 86,259,219.81/12,808.70
  6. Step 6: Final answer
    x = 6,734.42

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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.