Home / 18,660.48-28,007.04-7,573.20

Finding the Fourth Proportional to 18,660.48, 28,007.04 and 7,573.20

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Solution

The fourth proportional to 18,660.48, 28,007.04 and 7,573.20 is: 11,366.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.48 : 28,007.04 = 7,573.20 : x
  2. Step 2: Convert to fraction form
    18,660.48/28,007.04 = 7,573.20/x
  3. Step 3: Cross multiply
    18,660.48x = 28,007.04 × 7,573.20
  4. Step 4: Simplify right side
    18,660.48x = 212,102,915.33
  5. Step 5: Solve for x
    x = 212,102,915.33/18,660.48
  6. Step 6: Final answer
    x = 11,366.42

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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.