Home / 12,476.13-18,708.71-4,679.48

Finding the Fourth Proportional to 12,476.13, 18,708.71 and 4,679.48

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Solution

The fourth proportional to 12,476.13, 18,708.71 and 4,679.48 is: 7,017.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476.13 : 18,708.71 = 4,679.48 : x
  2. Step 2: Convert to fraction form
    12,476.13/18,708.71 = 4,679.48/x
  3. Step 3: Cross multiply
    12,476.13x = 18,708.71 × 4,679.48
  4. Step 4: Simplify right side
    12,476.13x = 87,546,917.33
  5. Step 5: Solve for x
    x = 87,546,917.33/12,476.13
  6. Step 6: Final answer
    x = 7,017.15

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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.