Home / 7,305.40-10,943.70-4,223.80

Finding the Fourth Proportional to 7,305.40, 10,943.70 and 4,223.80

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Solution

The fourth proportional to 7,305.40, 10,943.70 and 4,223.80 is: 6,327.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.40 : 10,943.70 = 4,223.80 : x
  2. Step 2: Convert to fraction form
    7,305.40/10,943.70 = 4,223.80/x
  3. Step 3: Cross multiply
    7,305.40x = 10,943.70 × 4,223.80
  4. Step 4: Simplify right side
    7,305.40x = 46,224,000.06
  5. Step 5: Solve for x
    x = 46,224,000.06/7,305.40
  6. Step 6: Final answer
    x = 6,327.37

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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.