Home / 8,687.79-13,031.73-2,114.01

Finding the Fourth Proportional to 8,687.79, 13,031.73 and 2,114.01

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Solution

The fourth proportional to 8,687.79, 13,031.73 and 2,114.01 is: 3,171.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.79 : 13,031.73 = 2,114.01 : x
  2. Step 2: Convert to fraction form
    8,687.79/13,031.73 = 2,114.01/x
  3. Step 3: Cross multiply
    8,687.79x = 13,031.73 × 2,114.01
  4. Step 4: Simplify right side
    8,687.79x = 27,549,207.54
  5. Step 5: Solve for x
    x = 27,549,207.54/8,687.79
  6. Step 6: Final answer
    x = 3,171.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.