Home / 13,210.21-18,230.12-7,241.91

Finding the Fourth Proportional to 13,210.21, 18,230.12 and 7,241.91

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Solution

The fourth proportional to 13,210.21, 18,230.12 and 7,241.91 is: 9,993.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.21 : 18,230.12 = 7,241.91 : x
  2. Step 2: Convert to fraction form
    13,210.21/18,230.12 = 7,241.91/x
  3. Step 3: Cross multiply
    13,210.21x = 18,230.12 × 7,241.91
  4. Step 4: Simplify right side
    13,210.21x = 132,020,888.33
  5. Step 5: Solve for x
    x = 132,020,888.33/13,210.21
  6. Step 6: Final answer
    x = 9,993.85

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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.