Home / 7,768.12-10,720.76-4,785.96

Finding the Fourth Proportional to 7,768.12, 10,720.76 and 4,785.96

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Solution

The fourth proportional to 7,768.12, 10,720.76 and 4,785.96 is: 6,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.12 : 10,720.76 = 4,785.96 : x
  2. Step 2: Convert to fraction form
    7,768.12/10,720.76 = 4,785.96/x
  3. Step 3: Cross multiply
    7,768.12x = 10,720.76 × 4,785.96
  4. Step 4: Simplify right side
    7,768.12x = 51,309,128.53
  5. Step 5: Solve for x
    x = 51,309,128.53/7,768.12
  6. Step 6: Final answer
    x = 6,605.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.