Home / 7,729.80-10,667.21-4,372.65

Finding the Fourth Proportional to 7,729.80, 10,667.21 and 4,372.65

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Solution

The fourth proportional to 7,729.80, 10,667.21 and 4,372.65 is: 6,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,729.80 : 10,667.21 = 4,372.65 : x
  2. Step 2: Convert to fraction form
    7,729.80/10,667.21 = 4,372.65/x
  3. Step 3: Cross multiply
    7,729.80x = 10,667.21 × 4,372.65
  4. Step 4: Simplify right side
    7,729.80x = 46,643,953.94
  5. Step 5: Solve for x
    x = 46,643,953.94/7,729.80
  6. Step 6: Final answer
    x = 6,034.30

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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.