Home / 7,814.50-10,784-4,277.73

Finding the Fourth Proportional to 7,814.50, 10,784 and 4,277.73

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Solution

The fourth proportional to 7,814.50, 10,784 and 4,277.73 is: 5,903.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.50 : 10,784 = 4,277.73 : x
  2. Step 2: Convert to fraction form
    7,814.50/10,784 = 4,277.73/x
  3. Step 3: Cross multiply
    7,814.50x = 10,784 × 4,277.73
  4. Step 4: Simplify right side
    7,814.50x = 46,131,040.32
  5. Step 5: Solve for x
    x = 46,131,040.32/7,814.50
  6. Step 6: Final answer
    x = 5,903.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.