Home / 7,220.43-10,809.58-6,470.10

Finding the Fourth Proportional to 7,220.43, 10,809.58 and 6,470.10

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Solution

The fourth proportional to 7,220.43, 10,809.58 and 6,470.10 is: 9,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,220.43 : 10,809.58 = 6,470.10 : x
  2. Step 2: Convert to fraction form
    7,220.43/10,809.58 = 6,470.10/x
  3. Step 3: Cross multiply
    7,220.43x = 10,809.58 × 6,470.10
  4. Step 4: Simplify right side
    7,220.43x = 69,938,993.33
  5. Step 5: Solve for x
    x = 69,938,993.33/7,220.43
  6. Step 6: Final answer
    x = 9,686.27

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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.