Home / 19,072.40-28,616.70-9,206.60

Finding the Fourth Proportional to 19,072.40, 28,616.70 and 9,206.60

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Solution

The fourth proportional to 19,072.40, 28,616.70 and 9,206.60 is: 13,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.40 : 28,616.70 = 9,206.60 : x
  2. Step 2: Convert to fraction form
    19,072.40/28,616.70 = 9,206.60/x
  3. Step 3: Cross multiply
    19,072.40x = 28,616.70 × 9,206.60
  4. Step 4: Simplify right side
    19,072.40x = 263,462,510.22
  5. Step 5: Solve for x
    x = 263,462,510.22/19,072.40
  6. Step 6: Final answer
    x = 13,813.81

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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.