Home / 18,284.12-25,232.64-11,217.68

Finding the Fourth Proportional to 18,284.12, 25,232.64 and 11,217.68

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Solution

The fourth proportional to 18,284.12, 25,232.64 and 11,217.68 is: 15,480.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,284.12 : 25,232.64 = 11,217.68 : x
  2. Step 2: Convert to fraction form
    18,284.12/25,232.64 = 11,217.68/x
  3. Step 3: Cross multiply
    18,284.12x = 25,232.64 × 11,217.68
  4. Step 4: Simplify right side
    18,284.12x = 283,051,681.08
  5. Step 5: Solve for x
    x = 283,051,681.08/18,284.12
  6. Step 6: Final answer
    x = 15,480.74

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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.