Home / 13,868.38-19,137.96-7,580.75

Finding the Fourth Proportional to 13,868.38, 19,137.96 and 7,580.75

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Solution

The fourth proportional to 13,868.38, 19,137.96 and 7,580.75 is: 10,461.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.38 : 19,137.96 = 7,580.75 : x
  2. Step 2: Convert to fraction form
    13,868.38/19,137.96 = 7,580.75/x
  3. Step 3: Cross multiply
    13,868.38x = 19,137.96 × 7,580.75
  4. Step 4: Simplify right side
    13,868.38x = 145,080,090.27
  5. Step 5: Solve for x
    x = 145,080,090.27/13,868.38
  6. Step 6: Final answer
    x = 10,461.21

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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.