Home / 18,716.86-28,075.32-5,569.36

Finding the Fourth Proportional to 18,716.86, 28,075.32 and 5,569.36

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Solution

The fourth proportional to 18,716.86, 28,075.32 and 5,569.36 is: 8,354.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,716.86 : 28,075.32 = 5,569.36 : x
  2. Step 2: Convert to fraction form
    18,716.86/28,075.32 = 5,569.36/x
  3. Step 3: Cross multiply
    18,716.86x = 28,075.32 × 5,569.36
  4. Step 4: Simplify right side
    18,716.86x = 156,361,564.20
  5. Step 5: Solve for x
    x = 156,361,564.20/18,716.86
  6. Step 6: Final answer
    x = 8,354.05

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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.