Home / 7,663.28-10,575.09-4,678.43

Finding the Fourth Proportional to 7,663.28, 10,575.09 and 4,678.43

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Solution

The fourth proportional to 7,663.28, 10,575.09 and 4,678.43 is: 6,456.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,663.28 : 10,575.09 = 4,678.43 : x
  2. Step 2: Convert to fraction form
    7,663.28/10,575.09 = 4,678.43/x
  3. Step 3: Cross multiply
    7,663.28x = 10,575.09 × 4,678.43
  4. Step 4: Simplify right side
    7,663.28x = 49,474,765.43
  5. Step 5: Solve for x
    x = 49,474,765.43/7,663.28
  6. Step 6: Final answer
    x = 6,456.09

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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.