Home / 8,716.77-13,075.04-2,142.90

Finding the Fourth Proportional to 8,716.77, 13,075.04 and 2,142.90

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Solution

The fourth proportional to 8,716.77, 13,075.04 and 2,142.90 is: 3,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.77 : 13,075.04 = 2,142.90 : x
  2. Step 2: Convert to fraction form
    8,716.77/13,075.04 = 2,142.90/x
  3. Step 3: Cross multiply
    8,716.77x = 13,075.04 × 2,142.90
  4. Step 4: Simplify right side
    8,716.77x = 28,018,492.50
  5. Step 5: Solve for x
    x = 28,018,492.50/8,716.77
  6. Step 6: Final answer
    x = 3,214.32

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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.