Home / 19,102.80-28,661.40-9,250.68

Finding the Fourth Proportional to 19,102.80, 28,661.40 and 9,250.68

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Solution

The fourth proportional to 19,102.80, 28,661.40 and 9,250.68 is: 13,879.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.80 : 28,661.40 = 9,250.68 : x
  2. Step 2: Convert to fraction form
    19,102.80/28,661.40 = 9,250.68/x
  3. Step 3: Cross multiply
    19,102.80x = 28,661.40 × 9,250.68
  4. Step 4: Simplify right side
    19,102.80x = 265,137,439.75
  5. Step 5: Solve for x
    x = 265,137,439.75/19,102.80
  6. Step 6: Final answer
    x = 13,879.51

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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.