Home / 13,027.14-17,977.62-7,921.14

Finding the Fourth Proportional to 13,027.14, 17,977.62 and 7,921.14

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Solution

The fourth proportional to 13,027.14, 17,977.62 and 7,921.14 is: 10,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027.14 : 17,977.62 = 7,921.14 : x
  2. Step 2: Convert to fraction form
    13,027.14/17,977.62 = 7,921.14/x
  3. Step 3: Cross multiply
    13,027.14x = 17,977.62 × 7,921.14
  4. Step 4: Simplify right side
    13,027.14x = 142,403,244.89
  5. Step 5: Solve for x
    x = 142,403,244.89/13,027.14
  6. Step 6: Final answer
    x = 10,931.27

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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.