Home / 18,748.95-28,114.74-6,899.73

Finding the Fourth Proportional to 18,748.95, 28,114.74 and 6,899.73

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Solution

The fourth proportional to 18,748.95, 28,114.74 and 6,899.73 is: 10,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.95 : 28,114.74 = 6,899.73 : x
  2. Step 2: Convert to fraction form
    18,748.95/28,114.74 = 6,899.73/x
  3. Step 3: Cross multiply
    18,748.95x = 28,114.74 × 6,899.73
  4. Step 4: Simplify right side
    18,748.95x = 193,984,115.02
  5. Step 5: Solve for x
    x = 193,984,115.02/18,748.95
  6. Step 6: Final answer
    x = 10,346.40

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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.