Home / 7,767.54-10,720.80-4,785.84

Finding the Fourth Proportional to 7,767.54, 10,720.80 and 4,785.84

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Solution

The fourth proportional to 7,767.54, 10,720.80 and 4,785.84 is: 6,605.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.54 : 10,720.80 = 4,785.84 : x
  2. Step 2: Convert to fraction form
    7,767.54/10,720.80 = 4,785.84/x
  3. Step 3: Cross multiply
    7,767.54x = 10,720.80 × 4,785.84
  4. Step 4: Simplify right side
    7,767.54x = 51,308,033.47
  5. Step 5: Solve for x
    x = 51,308,033.47/7,767.54
  6. Step 6: Final answer
    x = 6,605.44

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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.