Home / 18,953.15-28,433.37-5,805.64

Finding the Fourth Proportional to 18,953.15, 28,433.37 and 5,805.64

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Solution

The fourth proportional to 18,953.15, 28,433.37 and 5,805.64 is: 8,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.15 : 28,433.37 = 5,805.64 : x
  2. Step 2: Convert to fraction form
    18,953.15/28,433.37 = 5,805.64/x
  3. Step 3: Cross multiply
    18,953.15x = 28,433.37 × 5,805.64
  4. Step 4: Simplify right side
    18,953.15x = 165,073,768.04
  5. Step 5: Solve for x
    x = 165,073,768.04/18,953.15
  6. Step 6: Final answer
    x = 8,709.57

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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.