Home / 12,656.39-18,987.62-4,336.47

Finding the Fourth Proportional to 12,656.39, 18,987.62 and 4,336.47

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Solution

The fourth proportional to 12,656.39, 18,987.62 and 4,336.47 is: 6,505.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,656.39 : 18,987.62 = 4,336.47 : x
  2. Step 2: Convert to fraction form
    12,656.39/18,987.62 = 4,336.47/x
  3. Step 3: Cross multiply
    12,656.39x = 18,987.62 × 4,336.47
  4. Step 4: Simplify right side
    12,656.39x = 82,339,222.82
  5. Step 5: Solve for x
    x = 82,339,222.82/12,656.39
  6. Step 6: Final answer
    x = 6,505.75

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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.