Home / 13,214.13-18,235.49-7,626.21

Finding the Fourth Proportional to 13,214.13, 18,235.49 and 7,626.21

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Solution

The fourth proportional to 13,214.13, 18,235.49 and 7,626.21 is: 10,524.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.13 : 18,235.49 = 7,626.21 : x
  2. Step 2: Convert to fraction form
    13,214.13/18,235.49 = 7,626.21/x
  3. Step 3: Cross multiply
    13,214.13x = 18,235.49 × 7,626.21
  4. Step 4: Simplify right side
    13,214.13x = 139,067,676.19
  5. Step 5: Solve for x
    x = 139,067,676.19/13,214.13
  6. Step 6: Final answer
    x = 10,524.16

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Double scale
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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.