Home / 15,699.95-21,644.27-12,524.01

Finding the Fourth Proportional to 15,699.95, 21,644.27 and 12,524.01

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Solution

The fourth proportional to 15,699.95, 21,644.27 and 12,524.01 is: 17,265.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699.95 : 21,644.27 = 12,524.01 : x
  2. Step 2: Convert to fraction form
    15,699.95/21,644.27 = 12,524.01/x
  3. Step 3: Cross multiply
    15,699.95x = 21,644.27 × 12,524.01
  4. Step 4: Simplify right side
    15,699.95x = 271,073,053.92
  5. Step 5: Solve for x
    x = 271,073,053.92/15,699.95
  6. Step 6: Final answer
    x = 17,265.85

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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.