Home / 9,007.90-12,431.88-5,230.33

Finding the Fourth Proportional to 9,007.90, 12,431.88 and 5,230.33

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Solution

The fourth proportional to 9,007.90, 12,431.88 and 5,230.33 is: 7,218.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,007.90 : 12,431.88 = 5,230.33 : x
  2. Step 2: Convert to fraction form
    9,007.90/12,431.88 = 5,230.33/x
  3. Step 3: Cross multiply
    9,007.90x = 12,431.88 × 5,230.33
  4. Step 4: Simplify right side
    9,007.90x = 65,022,803.84
  5. Step 5: Solve for x
    x = 65,022,803.84/9,007.90
  6. Step 6: Final answer
    x = 7,218.42

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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.