Home / 11,935.20-16,455.06-7,678.62

Finding the Fourth Proportional to 11,935.20, 16,455.06 and 7,678.62

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Solution

The fourth proportional to 11,935.20, 16,455.06 and 7,678.62 is: 10,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,935.20 : 16,455.06 = 7,678.62 : x
  2. Step 2: Convert to fraction form
    11,935.20/16,455.06 = 7,678.62/x
  3. Step 3: Cross multiply
    11,935.20x = 16,455.06 × 7,678.62
  4. Step 4: Simplify right side
    11,935.20x = 126,352,152.82
  5. Step 5: Solve for x
    x = 126,352,152.82/11,935.20
  6. Step 6: Final answer
    x = 10,586.51

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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.