Home / 13,531.39-18,661.22-8,496.08

Finding the Fourth Proportional to 13,531.39, 18,661.22 and 8,496.08

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Solution

The fourth proportional to 13,531.39, 18,661.22 and 8,496.08 is: 11,716.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.39 : 18,661.22 = 8,496.08 : x
  2. Step 2: Convert to fraction form
    13,531.39/18,661.22 = 8,496.08/x
  3. Step 3: Cross multiply
    13,531.39x = 18,661.22 × 8,496.08
  4. Step 4: Simplify right side
    13,531.39x = 158,547,184.07
  5. Step 5: Solve for x
    x = 158,547,184.07/13,531.39
  6. Step 6: Final answer
    x = 11,716.99

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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.