Home / 18,735.64-28,106.34-7,049.68

Finding the Fourth Proportional to 18,735.64, 28,106.34 and 7,049.68

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Solution

The fourth proportional to 18,735.64, 28,106.34 and 7,049.68 is: 10,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,735.64 : 28,106.34 = 7,049.68 : x
  2. Step 2: Convert to fraction form
    18,735.64/28,106.34 = 7,049.68/x
  3. Step 3: Cross multiply
    18,735.64x = 28,106.34 × 7,049.68
  4. Step 4: Simplify right side
    18,735.64x = 198,140,702.97
  5. Step 5: Solve for x
    x = 198,140,702.97/18,735.64
  6. Step 6: Final answer
    x = 10,575.60

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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.