Home / 10,477.09-15,712.30-3,455.79

Finding the Fourth Proportional to 10,477.09, 15,712.30 and 3,455.79

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Solution

The fourth proportional to 10,477.09, 15,712.30 and 3,455.79 is: 5,182.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.09 : 15,712.30 = 3,455.79 : x
  2. Step 2: Convert to fraction form
    10,477.09/15,712.30 = 3,455.79/x
  3. Step 3: Cross multiply
    10,477.09x = 15,712.30 × 3,455.79
  4. Step 4: Simplify right side
    10,477.09x = 54,298,409.22
  5. Step 5: Solve for x
    x = 54,298,409.22/10,477.09
  6. Step 6: Final answer
    x = 5,182.58

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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.