Home / 12,724.80-19,100.16-8,836.80

Finding the Fourth Proportional to 12,724.80, 19,100.16 and 8,836.80

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Solution

The fourth proportional to 12,724.80, 19,100.16 and 8,836.80 is: 13,264.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,724.80 : 19,100.16 = 8,836.80 : x
  2. Step 2: Convert to fraction form
    12,724.80/19,100.16 = 8,836.80/x
  3. Step 3: Cross multiply
    12,724.80x = 19,100.16 × 8,836.80
  4. Step 4: Simplify right side
    12,724.80x = 168,784,293.89
  5. Step 5: Solve for x
    x = 168,784,293.89/12,724.80
  6. Step 6: Final answer
    x = 13,264.20

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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.