Home / 8,717.65-13,076.29-2,143.59

Finding the Fourth Proportional to 8,717.65, 13,076.29 and 2,143.59

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Solution

The fourth proportional to 8,717.65, 13,076.29 and 2,143.59 is: 3,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.65 : 13,076.29 = 2,143.59 : x
  2. Step 2: Convert to fraction form
    8,717.65/13,076.29 = 2,143.59/x
  3. Step 3: Cross multiply
    8,717.65x = 13,076.29 × 2,143.59
  4. Step 4: Simplify right side
    8,717.65x = 28,030,204.48
  5. Step 5: Solve for x
    x = 28,030,204.48/8,717.65
  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.