Home / 11,505.12-17,241.16-4,929.52

Finding the Fourth Proportional to 11,505.12, 17,241.16 and 4,929.52

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Solution

The fourth proportional to 11,505.12, 17,241.16 and 4,929.52 is: 7,387.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,505.12 : 17,241.16 = 4,929.52 : x
  2. Step 2: Convert to fraction form
    11,505.12/17,241.16 = 4,929.52/x
  3. Step 3: Cross multiply
    11,505.12x = 17,241.16 × 4,929.52
  4. Step 4: Simplify right side
    11,505.12x = 84,990,643.04
  5. Step 5: Solve for x
    x = 84,990,643.04/11,505.12
  6. Step 6: Final answer
    x = 7,387.20

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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.