Home / 13,210.29-18,230.09-7,241.85

Finding the Fourth Proportional to 13,210.29, 18,230.09 and 7,241.85

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Solution

The fourth proportional to 13,210.29, 18,230.09 and 7,241.85 is: 9,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210.29 : 18,230.09 = 7,241.85 : x
  2. Step 2: Convert to fraction form
    13,210.29/18,230.09 = 7,241.85/x
  3. Step 3: Cross multiply
    13,210.29x = 18,230.09 × 7,241.85
  4. Step 4: Simplify right side
    13,210.29x = 132,019,541.06
  5. Step 5: Solve for x
    x = 132,019,541.06/13,210.29
  6. Step 6: Final answer
    x = 9,993.69

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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.