Home / 8,536.14-12,810-2,989.53

Finding the Fourth Proportional to 8,536.14, 12,810 and 2,989.53

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Solution

The fourth proportional to 8,536.14, 12,810 and 2,989.53 is: 4,486.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,536.14 : 12,810 = 2,989.53 : x
  2. Step 2: Convert to fraction form
    8,536.14/12,810 = 2,989.53/x
  3. Step 3: Cross multiply
    8,536.14x = 12,810 × 2,989.53
  4. Step 4: Simplify right side
    8,536.14x = 38,295,879.30
  5. Step 5: Solve for x
    x = 38,295,879.30/8,536.14
  6. Step 6: Final answer
    x = 4,486.32

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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.