Home / 12,159.62-18,247.63-4,763.15

Finding the Fourth Proportional to 12,159.62, 18,247.63 and 4,763.15

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Solution

The fourth proportional to 12,159.62, 18,247.63 and 4,763.15 is: 7,147.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.62 : 18,247.63 = 4,763.15 : x
  2. Step 2: Convert to fraction form
    12,159.62/18,247.63 = 4,763.15/x
  3. Step 3: Cross multiply
    12,159.62x = 18,247.63 × 4,763.15
  4. Step 4: Simplify right side
    12,159.62x = 86,916,198.83
  5. Step 5: Solve for x
    x = 86,916,198.83/12,159.62
  6. Step 6: Final answer
    x = 7,147.94

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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.