Home / 6,665.32-9,999.42-4,203.28

Finding the Fourth Proportional to 6,665.32, 9,999.42 and 4,203.28

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Solution

The fourth proportional to 6,665.32, 9,999.42 and 4,203.28 is: 6,305.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,665.32 : 9,999.42 = 4,203.28 : x
  2. Step 2: Convert to fraction form
    6,665.32/9,999.42 = 4,203.28/x
  3. Step 3: Cross multiply
    6,665.32x = 9,999.42 × 4,203.28
  4. Step 4: Simplify right side
    6,665.32x = 42,030,362.10
  5. Step 5: Solve for x
    x = 42,030,362.10/6,665.32
  6. Step 6: Final answer
    x = 6,305.83

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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.