Home / 15,768.53-21,759.74-9,800.06

Finding the Fourth Proportional to 15,768.53, 21,759.74 and 9,800.06

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Solution

The fourth proportional to 15,768.53, 21,759.74 and 9,800.06 is: 13,523.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,768.53 : 21,759.74 = 9,800.06 : x
  2. Step 2: Convert to fraction form
    15,768.53/21,759.74 = 9,800.06/x
  3. Step 3: Cross multiply
    15,768.53x = 21,759.74 × 9,800.06
  4. Step 4: Simplify right side
    15,768.53x = 213,246,762.98
  5. Step 5: Solve for x
    x = 213,246,762.98/15,768.53
  6. Step 6: Final answer
    x = 13,523.57

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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.