Home / 9,125.58-13,684.75-3,120.16

Finding the Fourth Proportional to 9,125.58, 13,684.75 and 3,120.16

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Solution

The fourth proportional to 9,125.58, 13,684.75 and 3,120.16 is: 4,679.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.58 : 13,684.75 = 3,120.16 : x
  2. Step 2: Convert to fraction form
    9,125.58/13,684.75 = 3,120.16/x
  3. Step 3: Cross multiply
    9,125.58x = 13,684.75 × 3,120.16
  4. Step 4: Simplify right side
    9,125.58x = 42,698,609.56
  5. Step 5: Solve for x
    x = 42,698,609.56/9,125.58
  6. Step 6: Final answer
    x = 4,679.00

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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.