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Finding the Fourth Proportional to 9,383.51, 12,950.62 and 5,403.85

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Solution

The fourth proportional to 9,383.51, 12,950.62 and 5,403.85 is: 7,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,383.51 : 12,950.62 = 5,403.85 : x
  2. Step 2: Convert to fraction form
    9,383.51/12,950.62 = 5,403.85/x
  3. Step 3: Cross multiply
    9,383.51x = 12,950.62 × 5,403.85
  4. Step 4: Simplify right side
    9,383.51x = 69,983,162.00
  5. Step 5: Solve for x
    x = 69,983,162.00/9,383.51
  6. Step 6: Final answer
    x = 7,458.10

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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.