Home / 8,749.54-13,109.46-5,279.50

Finding the Fourth Proportional to 8,749.54, 13,109.46 and 5,279.50

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Solution

The fourth proportional to 8,749.54, 13,109.46 and 5,279.50 is: 7,910.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.54 : 13,109.46 = 5,279.50 : x
  2. Step 2: Convert to fraction form
    8,749.54/13,109.46 = 5,279.50/x
  3. Step 3: Cross multiply
    8,749.54x = 13,109.46 × 5,279.50
  4. Step 4: Simplify right side
    8,749.54x = 69,211,394.07
  5. Step 5: Solve for x
    x = 69,211,394.07/8,749.54
  6. Step 6: Final answer
    x = 7,910.29

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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.