Home / 10,999.65-15,179.63-5,963.86

Finding the Fourth Proportional to 10,999.65, 15,179.63 and 5,963.86

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Solution

The fourth proportional to 10,999.65, 15,179.63 and 5,963.86 is: 8,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.65 : 15,179.63 = 5,963.86 : x
  2. Step 2: Convert to fraction form
    10,999.65/15,179.63 = 5,963.86/x
  3. Step 3: Cross multiply
    10,999.65x = 15,179.63 × 5,963.86
  4. Step 4: Simplify right side
    10,999.65x = 90,529,210.87
  5. Step 5: Solve for x
    x = 90,529,210.87/10,999.65
  6. Step 6: Final answer
    x = 8,230.19

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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.