Home / 10,999.46-15,179.06-6,219.32

Finding the Fourth Proportional to 10,999.46, 15,179.06 and 6,219.32

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Solution

The fourth proportional to 10,999.46, 15,179.06 and 6,219.32 is: 8,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,999.46 : 15,179.06 = 6,219.32 : x
  2. Step 2: Convert to fraction form
    10,999.46/15,179.06 = 6,219.32/x
  3. Step 3: Cross multiply
    10,999.46x = 15,179.06 × 6,219.32
  4. Step 4: Simplify right side
    10,999.46x = 94,403,324.45
  5. Step 5: Solve for x
    x = 94,403,324.45/10,999.46
  6. Step 6: Final answer
    x = 8,582.55

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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.