Home / 9,301.34-12,816.77-8,645.06

Finding the Fourth Proportional to 9,301.34, 12,816.77 and 8,645.06

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Solution

The fourth proportional to 9,301.34, 12,816.77 and 8,645.06 is: 11,912.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,301.34 : 12,816.77 = 8,645.06 : x
  2. Step 2: Convert to fraction form
    9,301.34/12,816.77 = 8,645.06/x
  3. Step 3: Cross multiply
    9,301.34x = 12,816.77 × 8,645.06
  4. Step 4: Simplify right side
    9,301.34x = 110,801,745.66
  5. Step 5: Solve for x
    x = 110,801,745.66/9,301.34
  6. Step 6: Final answer
    x = 11,912.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.