Home / 8,749.15-13,120.88-2,904.19

Finding the Fourth Proportional to 8,749.15, 13,120.88 and 2,904.19

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Solution

The fourth proportional to 8,749.15, 13,120.88 and 2,904.19 is: 4,355.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.15 : 13,120.88 = 2,904.19 : x
  2. Step 2: Convert to fraction form
    8,749.15/13,120.88 = 2,904.19/x
  3. Step 3: Cross multiply
    8,749.15x = 13,120.88 × 2,904.19
  4. Step 4: Simplify right side
    8,749.15x = 38,105,481.16
  5. Step 5: Solve for x
    x = 38,105,481.16/8,749.15
  6. Step 6: Final answer
    x = 4,355.34

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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.