Home / 12,966.75-19,412.73-9,828.41

Finding the Fourth Proportional to 12,966.75, 19,412.73 and 9,828.41

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Solution

The fourth proportional to 12,966.75, 19,412.73 and 9,828.41 is: 14,714.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.75 : 19,412.73 = 9,828.41 : x
  2. Step 2: Convert to fraction form
    12,966.75/19,412.73 = 9,828.41/x
  3. Step 3: Cross multiply
    12,966.75x = 19,412.73 × 9,828.41
  4. Step 4: Simplify right side
    12,966.75x = 190,796,172.60
  5. Step 5: Solve for x
    x = 190,796,172.60/12,966.75
  6. Step 6: Final answer
    x = 14,714.26

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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.