Home / 12,081.41-16,678.58-9,386.58

Finding the Fourth Proportional to 12,081.41, 16,678.58 and 9,386.58

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Solution

The fourth proportional to 12,081.41, 16,678.58 and 9,386.58 is: 12,958.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,081.41 : 16,678.58 = 9,386.58 : x
  2. Step 2: Convert to fraction form
    12,081.41/16,678.58 = 9,386.58/x
  3. Step 3: Cross multiply
    12,081.41x = 16,678.58 × 9,386.58
  4. Step 4: Simplify right side
    12,081.41x = 156,554,825.46
  5. Step 5: Solve for x
    x = 156,554,825.46/12,081.41
  6. Step 6: Final answer
    x = 12,958.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.