Home / 9,201.12-12,697.32-5,009.28

Finding the Fourth Proportional to 9,201.12, 12,697.32 and 5,009.28

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Solution

The fourth proportional to 9,201.12, 12,697.32 and 5,009.28 is: 6,912.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,201.12 : 12,697.32 = 5,009.28 : x
  2. Step 2: Convert to fraction form
    9,201.12/12,697.32 = 5,009.28/x
  3. Step 3: Cross multiply
    9,201.12x = 12,697.32 × 5,009.28
  4. Step 4: Simplify right side
    9,201.12x = 63,604,431.13
  5. Step 5: Solve for x
    x = 63,604,431.13/9,201.12
  6. Step 6: Final answer
    x = 6,912.68

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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.