Home / 6,730.74-10,128.21-5,553.35

Finding the Fourth Proportional to 6,730.74, 10,128.21 and 5,553.35

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Solution

The fourth proportional to 6,730.74, 10,128.21 and 5,553.35 is: 8,356.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,730.74 : 10,128.21 = 5,553.35 : x
  2. Step 2: Convert to fraction form
    6,730.74/10,128.21 = 5,553.35/x
  3. Step 3: Cross multiply
    6,730.74x = 10,128.21 × 5,553.35
  4. Step 4: Simplify right side
    6,730.74x = 56,245,495.00
  5. Step 5: Solve for x
    x = 56,245,495.00/6,730.74
  6. Step 6: Final answer
    x = 8,356.51

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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.