Home / 12,208.56-18,308.46-5,279.28

Finding the Fourth Proportional to 12,208.56, 18,308.46 and 5,279.28

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Solution

The fourth proportional to 12,208.56, 18,308.46 and 5,279.28 is: 7,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.56 : 18,308.46 = 5,279.28 : x
  2. Step 2: Convert to fraction form
    12,208.56/18,308.46 = 5,279.28/x
  3. Step 3: Cross multiply
    12,208.56x = 18,308.46 × 5,279.28
  4. Step 4: Simplify right side
    12,208.56x = 96,655,486.71
  5. Step 5: Solve for x
    x = 96,655,486.71/12,208.56
  6. Step 6: Final answer
    x = 7,917.03

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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.