Home / 9,421.99-13,003.46-5,230.51

Finding the Fourth Proportional to 9,421.99, 13,003.46 and 5,230.51

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Solution

The fourth proportional to 9,421.99, 13,003.46 and 5,230.51 is: 7,218.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.99 : 13,003.46 = 5,230.51 : x
  2. Step 2: Convert to fraction form
    9,421.99/13,003.46 = 5,230.51/x
  3. Step 3: Cross multiply
    9,421.99x = 13,003.46 × 5,230.51
  4. Step 4: Simplify right side
    9,421.99x = 68,014,727.56
  5. Step 5: Solve for x
    x = 68,014,727.56/9,421.99
  6. Step 6: Final answer
    x = 7,218.72

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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.