Home / 18,799.47-28,199.70-6,319.71

Finding the Fourth Proportional to 18,799.47, 28,199.70 and 6,319.71

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Solution

The fourth proportional to 18,799.47, 28,199.70 and 6,319.71 is: 9,479.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,799.47 : 28,199.70 = 6,319.71 : x
  2. Step 2: Convert to fraction form
    18,799.47/28,199.70 = 6,319.71/x
  3. Step 3: Cross multiply
    18,799.47x = 28,199.70 × 6,319.71
  4. Step 4: Simplify right side
    18,799.47x = 178,213,926.09
  5. Step 5: Solve for x
    x = 178,213,926.09/18,799.47
  6. Step 6: Final answer
    x = 9,479.73

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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.