Home / 13,284.99-18,333.72-7,619.18

Finding the Fourth Proportional to 13,284.99, 18,333.72 and 7,619.18

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Solution

The fourth proportional to 13,284.99, 18,333.72 and 7,619.18 is: 10,514.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.99 : 18,333.72 = 7,619.18 : x
  2. Step 2: Convert to fraction form
    13,284.99/18,333.72 = 7,619.18/x
  3. Step 3: Cross multiply
    13,284.99x = 18,333.72 × 7,619.18
  4. Step 4: Simplify right side
    13,284.99x = 139,687,821.08
  5. Step 5: Solve for x
    x = 139,687,821.08/13,284.99
  6. Step 6: Final answer
    x = 10,514.71

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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.