Home / 15,284.56-21,084.93-9,982.48

Finding the Fourth Proportional to 15,284.56, 21,084.93 and 9,982.48

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Solution

The fourth proportional to 15,284.56, 21,084.93 and 9,982.48 is: 13,770.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,284.56 : 21,084.93 = 9,982.48 : x
  2. Step 2: Convert to fraction form
    15,284.56/21,084.93 = 9,982.48/x
  3. Step 3: Cross multiply
    15,284.56x = 21,084.93 × 9,982.48
  4. Step 4: Simplify right side
    15,284.56x = 210,479,892.03
  5. Step 5: Solve for x
    x = 210,479,892.03/15,284.56
  6. Step 6: Final answer
    x = 13,770.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.