Home / 7,768.24-10,713.21-5,115.08

Finding the Fourth Proportional to 7,768.24, 10,713.21 and 5,115.08

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Solution

The fourth proportional to 7,768.24, 10,713.21 and 5,115.08 is: 7,054.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,768.24 : 10,713.21 = 5,115.08 : x
  2. Step 2: Convert to fraction form
    7,768.24/10,713.21 = 5,115.08/x
  3. Step 3: Cross multiply
    7,768.24x = 10,713.21 × 5,115.08
  4. Step 4: Simplify right side
    7,768.24x = 54,798,926.21
  5. Step 5: Solve for x
    x = 54,798,926.21/7,768.24
  6. Step 6: Final answer
    x = 7,054.23

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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.