Home / 11,019.69-16,527.40-3,120.29

Finding the Fourth Proportional to 11,019.69, 16,527.40 and 3,120.29

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Solution

The fourth proportional to 11,019.69, 16,527.40 and 3,120.29 is: 4,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.69 : 16,527.40 = 3,120.29 : x
  2. Step 2: Convert to fraction form
    11,019.69/16,527.40 = 3,120.29/x
  3. Step 3: Cross multiply
    11,019.69x = 16,527.40 × 3,120.29
  4. Step 4: Simplify right side
    11,019.69x = 51,570,280.95
  5. Step 5: Solve for x
    x = 51,570,280.95/11,019.69
  6. Step 6: Final answer
    x = 4,679.83

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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.