Home / 10,431.12-15,643.44-3,504

Finding the Fourth Proportional to 10,431.12, 15,643.44 and 3,504

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Solution

The fourth proportional to 10,431.12, 15,643.44 and 3,504 is: 5,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.12 : 15,643.44 = 3,504 : x
  2. Step 2: Convert to fraction form
    10,431.12/15,643.44 = 3,504/x
  3. Step 3: Cross multiply
    10,431.12x = 15,643.44 × 3,504
  4. Step 4: Simplify right side
    10,431.12x = 54,814,613.76
  5. Step 5: Solve for x
    x = 54,814,613.76/10,431.12
  6. Step 6: Final answer
    x = 5,254.91

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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.