Home / 12,748.70-19,106.76-10,284.68

Finding the Fourth Proportional to 12,748.70, 19,106.76 and 10,284.68

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Solution

The fourth proportional to 12,748.70, 19,106.76 and 10,284.68 is: 15,413.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.70 : 19,106.76 = 10,284.68 : x
  2. Step 2: Convert to fraction form
    12,748.70/19,106.76 = 10,284.68/x
  3. Step 3: Cross multiply
    12,748.70x = 19,106.76 × 10,284.68
  4. Step 4: Simplify right side
    12,748.70x = 196,506,912.44
  5. Step 5: Solve for x
    x = 196,506,912.44/12,748.70
  6. Step 6: Final answer
    x = 15,413.88

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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.