Home / 7,639.04-11,462.82-4,128.98

Finding the Fourth Proportional to 7,639.04, 11,462.82 and 4,128.98

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Solution

The fourth proportional to 7,639.04, 11,462.82 and 4,128.98 is: 6,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,639.04 : 11,462.82 = 4,128.98 : x
  2. Step 2: Convert to fraction form
    7,639.04/11,462.82 = 4,128.98/x
  3. Step 3: Cross multiply
    7,639.04x = 11,462.82 × 4,128.98
  4. Step 4: Simplify right side
    7,639.04x = 47,329,754.52
  5. Step 5: Solve for x
    x = 47,329,754.52/7,639.04
  6. Step 6: Final answer
    x = 6,195.77

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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.