Home / 18,510.90-25,545.72-10,553.04

Finding the Fourth Proportional to 18,510.90, 25,545.72 and 10,553.04

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Solution

The fourth proportional to 18,510.90, 25,545.72 and 10,553.04 is: 14,563.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,510.90 : 25,545.72 = 10,553.04 : x
  2. Step 2: Convert to fraction form
    18,510.90/25,545.72 = 10,553.04/x
  3. Step 3: Cross multiply
    18,510.90x = 25,545.72 × 10,553.04
  4. Step 4: Simplify right side
    18,510.90x = 269,585,004.99
  5. Step 5: Solve for x
    x = 269,585,004.99/18,510.90
  6. Step 6: Final answer
    x = 14,563.58

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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.