Home / 12,680.14-19,021.95-5,282.87

Finding the Fourth Proportional to 12,680.14, 19,021.95 and 5,282.87

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Solution

The fourth proportional to 12,680.14, 19,021.95 and 5,282.87 is: 7,925.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.14 : 19,021.95 = 5,282.87 : x
  2. Step 2: Convert to fraction form
    12,680.14/19,021.95 = 5,282.87/x
  3. Step 3: Cross multiply
    12,680.14x = 19,021.95 × 5,282.87
  4. Step 4: Simplify right side
    12,680.14x = 100,490,489.00
  5. Step 5: Solve for x
    x = 100,490,489.00/12,680.14
  6. Step 6: Final answer
    x = 7,925.03

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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.