Home / 10,825.12-16,242.36-5,283.28

Finding the Fourth Proportional to 10,825.12, 16,242.36 and 5,283.28

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Solution

The fourth proportional to 10,825.12, 16,242.36 and 5,283.28 is: 7,927.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,825.12 : 16,242.36 = 5,283.28 : x
  2. Step 2: Convert to fraction form
    10,825.12/16,242.36 = 5,283.28/x
  3. Step 3: Cross multiply
    10,825.12x = 16,242.36 × 5,283.28
  4. Step 4: Simplify right side
    10,825.12x = 85,812,935.74
  5. Step 5: Solve for x
    x = 85,812,935.74/10,825.12
  6. Step 6: Final answer
    x = 7,927.20

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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.