Home / 10,601.91-15,887.84-7,806.65

Finding the Fourth Proportional to 10,601.91, 15,887.84 and 7,806.65

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Solution

The fourth proportional to 10,601.91, 15,887.84 and 7,806.65 is: 11,698.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,601.91 : 15,887.84 = 7,806.65 : x
  2. Step 2: Convert to fraction form
    10,601.91/15,887.84 = 7,806.65/x
  3. Step 3: Cross multiply
    10,601.91x = 15,887.84 × 7,806.65
  4. Step 4: Simplify right side
    10,601.91x = 124,030,687.66
  5. Step 5: Solve for x
    x = 124,030,687.66/10,601.91
  6. Step 6: Final answer
    x = 11,698.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.