Home / 9,147.15-13,720.73-4,215.33

Finding the Fourth Proportional to 9,147.15, 13,720.73 and 4,215.33

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Solution

The fourth proportional to 9,147.15, 13,720.73 and 4,215.33 is: 6,323.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.15 : 13,720.73 = 4,215.33 : x
  2. Step 2: Convert to fraction form
    9,147.15/13,720.73 = 4,215.33/x
  3. Step 3: Cross multiply
    9,147.15x = 13,720.73 × 4,215.33
  4. Step 4: Simplify right side
    9,147.15x = 57,837,383.71
  5. Step 5: Solve for x
    x = 57,837,383.71/9,147.15
  6. Step 6: Final answer
    x = 6,323.00

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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.