Home / 19,069.40-28,612.20-9,203.60

Finding the Fourth Proportional to 19,069.40, 28,612.20 and 9,203.60

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Solution

The fourth proportional to 19,069.40, 28,612.20 and 9,203.60 is: 13,809.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,069.40 : 28,612.20 = 9,203.60 : x
  2. Step 2: Convert to fraction form
    19,069.40/28,612.20 = 9,203.60/x
  3. Step 3: Cross multiply
    19,069.40x = 28,612.20 × 9,203.60
  4. Step 4: Simplify right side
    19,069.40x = 263,335,243.92
  5. Step 5: Solve for x
    x = 263,335,243.92/19,069.40
  6. Step 6: Final answer
    x = 13,809.31

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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.