Home / 7,786.08-11,681.45-3,628.55

Finding the Fourth Proportional to 7,786.08, 11,681.45 and 3,628.55

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Solution

The fourth proportional to 7,786.08, 11,681.45 and 3,628.55 is: 5,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.08 : 11,681.45 = 3,628.55 : x
  2. Step 2: Convert to fraction form
    7,786.08/11,681.45 = 3,628.55/x
  3. Step 3: Cross multiply
    7,786.08x = 11,681.45 × 3,628.55
  4. Step 4: Simplify right side
    7,786.08x = 42,386,648.85
  5. Step 5: Solve for x
    x = 42,386,648.85/7,786.08
  6. Step 6: Final answer
    x = 5,443.90

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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.