Home / 8,717.34-13,075.89-2,143.58

Finding the Fourth Proportional to 8,717.34, 13,075.89 and 2,143.58

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Solution

The fourth proportional to 8,717.34, 13,075.89 and 2,143.58 is: 3,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.34 : 13,075.89 = 2,143.58 : x
  2. Step 2: Convert to fraction form
    8,717.34/13,075.89 = 2,143.58/x
  3. Step 3: Cross multiply
    8,717.34x = 13,075.89 × 2,143.58
  4. Step 4: Simplify right side
    8,717.34x = 28,029,216.29
  5. Step 5: Solve for x
    x = 28,029,216.29/8,717.34
  6. Step 6: Final answer
    x = 3,215.34

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1.5x scale

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.