Home / 7,705.24-10,629.66-4,871.32

Finding the Fourth Proportional to 7,705.24, 10,629.66 and 4,871.32

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Solution

The fourth proportional to 7,705.24, 10,629.66 and 4,871.32 is: 6,720.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.24 : 10,629.66 = 4,871.32 : x
  2. Step 2: Convert to fraction form
    7,705.24/10,629.66 = 4,871.32/x
  3. Step 3: Cross multiply
    7,705.24x = 10,629.66 × 4,871.32
  4. Step 4: Simplify right side
    7,705.24x = 51,780,475.35
  5. Step 5: Solve for x
    x = 51,780,475.35/7,705.24
  6. Step 6: Final answer
    x = 6,720.16

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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.