Home / 12,966.58-19,450.89-6,389.18

Finding the Fourth Proportional to 12,966.58, 19,450.89 and 6,389.18

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Solution

The fourth proportional to 12,966.58, 19,450.89 and 6,389.18 is: 9,584.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.58 : 19,450.89 = 6,389.18 : x
  2. Step 2: Convert to fraction form
    12,966.58/19,450.89 = 6,389.18/x
  3. Step 3: Cross multiply
    12,966.58x = 19,450.89 × 6,389.18
  4. Step 4: Simplify right side
    12,966.58x = 124,275,237.37
  5. Step 5: Solve for x
    x = 124,275,237.37/12,966.58
  6. Step 6: Final answer
    x = 9,584.27

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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.