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Finding the Fourth Proportional to 7,814.53, 10,789.08 and 6,973.79

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Solution

The fourth proportional to 7,814.53, 10,789.08 and 6,973.79 is: 9,628.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,814.53 : 10,789.08 = 6,973.79 : x
  2. Step 2: Convert to fraction form
    7,814.53/10,789.08 = 6,973.79/x
  3. Step 3: Cross multiply
    7,814.53x = 10,789.08 × 6,973.79
  4. Step 4: Simplify right side
    7,814.53x = 75,240,720.32
  5. Step 5: Solve for x
    x = 75,240,720.32/7,814.53
  6. Step 6: Final answer
    x = 9,628.31

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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.