Home / 13,181.88-18,166.44-10,810.20

Finding the Fourth Proportional to 13,181.88, 18,166.44 and 10,810.20

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Solution

The fourth proportional to 13,181.88, 18,166.44 and 10,810.20 is: 14,897.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.88 : 18,166.44 = 10,810.20 : x
  2. Step 2: Convert to fraction form
    13,181.88/18,166.44 = 10,810.20/x
  3. Step 3: Cross multiply
    13,181.88x = 18,166.44 × 10,810.20
  4. Step 4: Simplify right side
    13,181.88x = 196,382,849.69
  5. Step 5: Solve for x
    x = 196,382,849.69/13,181.88
  6. Step 6: Final answer
    x = 14,897.94

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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.