Home / 13,087.05-18,052.32-8,371.23

Finding the Fourth Proportional to 13,087.05, 18,052.32 and 8,371.23

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Solution

The fourth proportional to 13,087.05, 18,052.32 and 8,371.23 is: 11,547.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.05 : 18,052.32 = 8,371.23 : x
  2. Step 2: Convert to fraction form
    13,087.05/18,052.32 = 8,371.23/x
  3. Step 3: Cross multiply
    13,087.05x = 18,052.32 × 8,371.23
  4. Step 4: Simplify right side
    13,087.05x = 151,120,122.75
  5. Step 5: Solve for x
    x = 151,120,122.75/13,087.05
  6. Step 6: Final answer
    x = 11,547.30

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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.