Home / 18,903.44-28,359.40-5,756.85

Finding the Fourth Proportional to 18,903.44, 28,359.40 and 5,756.85

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Solution

The fourth proportional to 18,903.44, 28,359.40 and 5,756.85 is: 8,636.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,903.44 : 28,359.40 = 5,756.85 : x
  2. Step 2: Convert to fraction form
    18,903.44/28,359.40 = 5,756.85/x
  3. Step 3: Cross multiply
    18,903.44x = 28,359.40 × 5,756.85
  4. Step 4: Simplify right side
    18,903.44x = 163,260,811.89
  5. Step 5: Solve for x
    x = 163,260,811.89/18,903.44
  6. Step 6: Final answer
    x = 8,636.57

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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.