Home / 10,642.08-15,965.28-4,405.44

Finding the Fourth Proportional to 10,642.08, 15,965.28 and 4,405.44

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Solution

The fourth proportional to 10,642.08, 15,965.28 and 4,405.44 is: 6,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.08 : 15,965.28 = 4,405.44 : x
  2. Step 2: Convert to fraction form
    10,642.08/15,965.28 = 4,405.44/x
  3. Step 3: Cross multiply
    10,642.08x = 15,965.28 × 4,405.44
  4. Step 4: Simplify right side
    10,642.08x = 70,334,083.12
  5. Step 5: Solve for x
    x = 70,334,083.12/10,642.08
  6. Step 6: Final answer
    x = 6,609.05

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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.