Home / 7,636.95-11,448.25-4,121.69

Finding the Fourth Proportional to 7,636.95, 11,448.25 and 4,121.69

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Solution

The fourth proportional to 7,636.95, 11,448.25 and 4,121.69 is: 6,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,636.95 : 11,448.25 = 4,121.69 : x
  2. Step 2: Convert to fraction form
    7,636.95/11,448.25 = 4,121.69/x
  3. Step 3: Cross multiply
    7,636.95x = 11,448.25 × 4,121.69
  4. Step 4: Simplify right side
    7,636.95x = 47,186,148.24
  5. Step 5: Solve for x
    x = 47,186,148.24/7,636.95
  6. Step 6: Final answer
    x = 6,178.66

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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.