Home / 10,477.72-15,712.80-3,080.32

Finding the Fourth Proportional to 10,477.72, 15,712.80 and 3,080.32

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Solution

The fourth proportional to 10,477.72, 15,712.80 and 3,080.32 is: 4,619.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.72 : 15,712.80 = 3,080.32 : x
  2. Step 2: Convert to fraction form
    10,477.72/15,712.80 = 3,080.32/x
  3. Step 3: Cross multiply
    10,477.72x = 15,712.80 × 3,080.32
  4. Step 4: Simplify right side
    10,477.72x = 48,400,452.10
  5. Step 5: Solve for x
    x = 48,400,452.10/10,477.72
  6. Step 6: Final answer
    x = 4,619.37

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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.