Home / 12,544.35-18,815.56-4,643.15

Finding the Fourth Proportional to 12,544.35, 18,815.56 and 4,643.15

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Solution

The fourth proportional to 12,544.35, 18,815.56 and 4,643.15 is: 6,964.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,544.35 : 18,815.56 = 4,643.15 : x
  2. Step 2: Convert to fraction form
    12,544.35/18,815.56 = 4,643.15/x
  3. Step 3: Cross multiply
    12,544.35x = 18,815.56 × 4,643.15
  4. Step 4: Simplify right side
    12,544.35x = 87,363,514.45
  5. Step 5: Solve for x
    x = 87,363,514.45/12,544.35
  6. Step 6: Final answer
    x = 6,964.37

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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.