Home / 10,255.96-15,411.74-5,579.43

Finding the Fourth Proportional to 10,255.96, 15,411.74 and 5,579.43

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Solution

The fourth proportional to 10,255.96, 15,411.74 and 5,579.43 is: 8,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.96 : 15,411.74 = 5,579.43 : x
  2. Step 2: Convert to fraction form
    10,255.96/15,411.74 = 5,579.43/x
  3. Step 3: Cross multiply
    10,255.96x = 15,411.74 × 5,579.43
  4. Step 4: Simplify right side
    10,255.96x = 85,988,619.55
  5. Step 5: Solve for x
    x = 85,988,619.55/10,255.96
  6. Step 6: Final answer
    x = 8,384.26

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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.