Home / 28,613.96-42,919.50-7,837.64

Finding the Fourth Proportional to 28,613.96, 42,919.50 and 7,837.64

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Solution

The fourth proportional to 28,613.96, 42,919.50 and 7,837.64 is: 11,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,613.96 : 42,919.50 = 7,837.64 : x
  2. Step 2: Convert to fraction form
    28,613.96/42,919.50 = 7,837.64/x
  3. Step 3: Cross multiply
    28,613.96x = 42,919.50 × 7,837.64
  4. Step 4: Simplify right side
    28,613.96x = 336,387,589.98
  5. Step 5: Solve for x
    x = 336,387,589.98/28,613.96
  6. Step 6: Final answer
    x = 11,756.07

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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.