Home / 12,287.36-16,955.07-6,980.69

Finding the Fourth Proportional to 12,287.36, 16,955.07 and 6,980.69

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Solution

The fourth proportional to 12,287.36, 16,955.07 and 6,980.69 is: 9,632.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,287.36 : 16,955.07 = 6,980.69 : x
  2. Step 2: Convert to fraction form
    12,287.36/16,955.07 = 6,980.69/x
  3. Step 3: Cross multiply
    12,287.36x = 16,955.07 × 6,980.69
  4. Step 4: Simplify right side
    12,287.36x = 118,358,087.60
  5. Step 5: Solve for x
    x = 118,358,087.60/12,287.36
  6. Step 6: Final answer
    x = 9,632.51

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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.