Home / 18,693.66-28,040.37-4,653.61

Finding the Fourth Proportional to 18,693.66, 28,040.37 and 4,653.61

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Solution

The fourth proportional to 18,693.66, 28,040.37 and 4,653.61 is: 6,980.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.66 : 28,040.37 = 4,653.61 : x
  2. Step 2: Convert to fraction form
    18,693.66/28,040.37 = 4,653.61/x
  3. Step 3: Cross multiply
    18,693.66x = 28,040.37 × 4,653.61
  4. Step 4: Simplify right side
    18,693.66x = 130,488,946.24
  5. Step 5: Solve for x
    x = 130,488,946.24/18,693.66
  6. Step 6: Final answer
    x = 6,980.39

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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.