Home / 13,907.28-19,181.88-10,131.60

Finding the Fourth Proportional to 13,907.28, 19,181.88 and 10,131.60

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Solution

The fourth proportional to 13,907.28, 19,181.88 and 10,131.60 is: 13,974.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,907.28 : 19,181.88 = 10,131.60 : x
  2. Step 2: Convert to fraction form
    13,907.28/19,181.88 = 10,131.60/x
  3. Step 3: Cross multiply
    13,907.28x = 19,181.88 × 10,131.60
  4. Step 4: Simplify right side
    13,907.28x = 194,343,135.41
  5. Step 5: Solve for x
    x = 194,343,135.41/13,907.28
  6. Step 6: Final answer
    x = 13,974.20

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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.