Home / 15,304.21-21,120.01-9,253.64

Finding the Fourth Proportional to 15,304.21, 21,120.01 and 9,253.64

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Solution

The fourth proportional to 15,304.21, 21,120.01 and 9,253.64 is: 12,770.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304.21 : 21,120.01 = 9,253.64 : x
  2. Step 2: Convert to fraction form
    15,304.21/21,120.01 = 9,253.64/x
  3. Step 3: Cross multiply
    15,304.21x = 21,120.01 × 9,253.64
  4. Step 4: Simplify right side
    15,304.21x = 195,436,999.00
  5. Step 5: Solve for x
    x = 195,436,999.00/15,304.21
  6. Step 6: Final answer
    x = 12,770.15

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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.