Home / 10,656.09-15,985.26-3,636.81

Finding the Fourth Proportional to 10,656.09, 15,985.26 and 3,636.81

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Solution

The fourth proportional to 10,656.09, 15,985.26 and 3,636.81 is: 5,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.09 : 15,985.26 = 3,636.81 : x
  2. Step 2: Convert to fraction form
    10,656.09/15,985.26 = 3,636.81/x
  3. Step 3: Cross multiply
    10,656.09x = 15,985.26 × 3,636.81
  4. Step 4: Simplify right side
    10,656.09x = 58,135,353.42
  5. Step 5: Solve for x
    x = 58,135,353.42/10,656.09
  6. Step 6: Final answer
    x = 5,455.60

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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.