Home / 7,206.35-10,737.89-6,420.31

Finding the Fourth Proportional to 7,206.35, 10,737.89 and 6,420.31

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Solution

The fourth proportional to 7,206.35, 10,737.89 and 6,420.31 is: 9,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,206.35 : 10,737.89 = 6,420.31 : x
  2. Step 2: Convert to fraction form
    7,206.35/10,737.89 = 6,420.31/x
  3. Step 3: Cross multiply
    7,206.35x = 10,737.89 × 6,420.31
  4. Step 4: Simplify right side
    7,206.35x = 68,940,550.44
  5. Step 5: Solve for x
    x = 68,940,550.44/7,206.35
  6. Step 6: Final answer
    x = 9,566.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.