Home / 6,810.60-10,215.90-4,477.80

Finding the Fourth Proportional to 6,810.60, 10,215.90 and 4,477.80

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Solution

The fourth proportional to 6,810.60, 10,215.90 and 4,477.80 is: 6,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,810.60 : 10,215.90 = 4,477.80 : x
  2. Step 2: Convert to fraction form
    6,810.60/10,215.90 = 4,477.80/x
  3. Step 3: Cross multiply
    6,810.60x = 10,215.90 × 4,477.80
  4. Step 4: Simplify right side
    6,810.60x = 45,744,757.02
  5. Step 5: Solve for x
    x = 45,744,757.02/6,810.60
  6. Step 6: Final answer
    x = 6,716.70

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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.