Home / 15,924.74-21,972.57-9,636.98

Finding the Fourth Proportional to 15,924.74, 21,972.57 and 9,636.98

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Solution

The fourth proportional to 15,924.74, 21,972.57 and 9,636.98 is: 13,296.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,924.74 : 21,972.57 = 9,636.98 : x
  2. Step 2: Convert to fraction form
    15,924.74/21,972.57 = 9,636.98/x
  3. Step 3: Cross multiply
    15,924.74x = 21,972.57 × 9,636.98
  4. Step 4: Simplify right side
    15,924.74x = 211,749,217.64
  5. Step 5: Solve for x
    x = 211,749,217.64/15,924.74
  6. Step 6: Final answer
    x = 13,296.87

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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.