Home / 18,386.45-25,372.50-10,209.54

Finding the Fourth Proportional to 18,386.45, 25,372.50 and 10,209.54

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Solution

The fourth proportional to 18,386.45, 25,372.50 and 10,209.54 is: 14,088.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386.45 : 25,372.50 = 10,209.54 : x
  2. Step 2: Convert to fraction form
    18,386.45/25,372.50 = 10,209.54/x
  3. Step 3: Cross multiply
    18,386.45x = 25,372.50 × 10,209.54
  4. Step 4: Simplify right side
    18,386.45x = 259,041,648.80
  5. Step 5: Solve for x
    x = 259,041,648.80/18,386.45
  6. Step 6: Final answer
    x = 14,088.73

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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.