Home / 13,187.53-18,200.03-7,882.23

Finding the Fourth Proportional to 13,187.53, 18,200.03 and 7,882.23

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Solution

The fourth proportional to 13,187.53, 18,200.03 and 7,882.23 is: 10,878.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.53 : 18,200.03 = 7,882.23 : x
  2. Step 2: Convert to fraction form
    13,187.53/18,200.03 = 7,882.23/x
  3. Step 3: Cross multiply
    13,187.53x = 18,200.03 × 7,882.23
  4. Step 4: Simplify right side
    13,187.53x = 143,456,783.06
  5. Step 5: Solve for x
    x = 143,456,783.06/13,187.53
  6. Step 6: Final answer
    x = 10,878.22

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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.