Home / 8,686.12-13,031.34-2,530.12

Finding the Fourth Proportional to 8,686.12, 13,031.34 and 2,530.12

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Solution

The fourth proportional to 8,686.12, 13,031.34 and 2,530.12 is: 3,795.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,686.12 : 13,031.34 = 2,530.12 : x
  2. Step 2: Convert to fraction form
    8,686.12/13,031.34 = 2,530.12/x
  3. Step 3: Cross multiply
    8,686.12x = 13,031.34 × 2,530.12
  4. Step 4: Simplify right side
    8,686.12x = 32,970,853.96
  5. Step 5: Solve for x
    x = 32,970,853.96/8,686.12
  6. Step 6: Final answer
    x = 3,795.81

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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.