Home / 18,214.10-25,135.55-10,256.46

Finding the Fourth Proportional to 18,214.10, 25,135.55 and 10,256.46

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Solution

The fourth proportional to 18,214.10, 25,135.55 and 10,256.46 is: 14,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214.10 : 25,135.55 = 10,256.46 : x
  2. Step 2: Convert to fraction form
    18,214.10/25,135.55 = 10,256.46/x
  3. Step 3: Cross multiply
    18,214.10x = 25,135.55 × 10,256.46
  4. Step 4: Simplify right side
    18,214.10x = 257,801,711.87
  5. Step 5: Solve for x
    x = 257,801,711.87/18,214.10
  6. Step 6: Final answer
    x = 14,153.97

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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.