Home / 8,717.16-13,075.61-2,143.35

Finding the Fourth Proportional to 8,717.16, 13,075.61 and 2,143.35

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Solution

The fourth proportional to 8,717.16, 13,075.61 and 2,143.35 is: 3,214.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.16 : 13,075.61 = 2,143.35 : x
  2. Step 2: Convert to fraction form
    8,717.16/13,075.61 = 2,143.35/x
  3. Step 3: Cross multiply
    8,717.16x = 13,075.61 × 2,143.35
  4. Step 4: Simplify right side
    8,717.16x = 28,025,552.53
  5. Step 5: Solve for x
    x = 28,025,552.53/8,717.16
  6. Step 6: Final answer
    x = 3,214.99

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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.