Home / 19,004.40-28,517.40-7,318.26

Finding the Fourth Proportional to 19,004.40, 28,517.40 and 7,318.26

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Solution

The fourth proportional to 19,004.40, 28,517.40 and 7,318.26 is: 10,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,004.40 : 28,517.40 = 7,318.26 : x
  2. Step 2: Convert to fraction form
    19,004.40/28,517.40 = 7,318.26/x
  3. Step 3: Cross multiply
    19,004.40x = 28,517.40 × 7,318.26
  4. Step 4: Simplify right side
    19,004.40x = 208,697,747.72
  5. Step 5: Solve for x
    x = 208,697,747.72/19,004.40
  6. Step 6: Final answer
    x = 10,981.55

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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.