Home / 12,680.12-19,020.18-6,873.50

Finding the Fourth Proportional to 12,680.12, 19,020.18 and 6,873.50

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Solution

The fourth proportional to 12,680.12, 19,020.18 and 6,873.50 is: 10,310.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.12 : 19,020.18 = 6,873.50 : x
  2. Step 2: Convert to fraction form
    12,680.12/19,020.18 = 6,873.50/x
  3. Step 3: Cross multiply
    12,680.12x = 19,020.18 × 6,873.50
  4. Step 4: Simplify right side
    12,680.12x = 130,735,207.23
  5. Step 5: Solve for x
    x = 130,735,207.23/12,680.12
  6. Step 6: Final answer
    x = 10,310.25

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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.