Home / 10,665.23-15,999.73-3,643.60

Finding the Fourth Proportional to 10,665.23, 15,999.73 and 3,643.60

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Solution

The fourth proportional to 10,665.23, 15,999.73 and 3,643.60 is: 5,466.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.23 : 15,999.73 = 3,643.60 : x
  2. Step 2: Convert to fraction form
    10,665.23/15,999.73 = 3,643.60/x
  3. Step 3: Cross multiply
    10,665.23x = 15,999.73 × 3,643.60
  4. Step 4: Simplify right side
    10,665.23x = 58,296,597.12
  5. Step 5: Solve for x
    x = 58,296,597.12/10,665.23
  6. Step 6: Final answer
    x = 5,466.04

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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.