Home / 15,496.25-21,441.12-13,510.94

Finding the Fourth Proportional to 15,496.25, 21,441.12 and 13,510.94

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Solution

The fourth proportional to 15,496.25, 21,441.12 and 13,510.94 is: 18,694.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,496.25 : 21,441.12 = 13,510.94 : x
  2. Step 2: Convert to fraction form
    15,496.25/21,441.12 = 13,510.94/x
  3. Step 3: Cross multiply
    15,496.25x = 21,441.12 × 13,510.94
  4. Step 4: Simplify right side
    15,496.25x = 289,689,685.85
  5. Step 5: Solve for x
    x = 289,689,685.85/15,496.25
  6. Step 6: Final answer
    x = 18,694.18

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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.