Home / 10,477.36-15,712.68-3,455.80

Finding the Fourth Proportional to 10,477.36, 15,712.68 and 3,455.80

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Solution

The fourth proportional to 10,477.36, 15,712.68 and 3,455.80 is: 5,182.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,477.36 : 15,712.68 = 3,455.80 : x
  2. Step 2: Convert to fraction form
    10,477.36/15,712.68 = 3,455.80/x
  3. Step 3: Cross multiply
    10,477.36x = 15,712.68 × 3,455.80
  4. Step 4: Simplify right side
    10,477.36x = 54,299,840.26
  5. Step 5: Solve for x
    x = 54,299,840.26/10,477.36
  6. Step 6: Final answer
    x = 5,182.59

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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.