Home / 18,434.84-25,440.54-11,365.88

Finding the Fourth Proportional to 18,434.84, 25,440.54 and 11,365.88

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Solution

The fourth proportional to 18,434.84, 25,440.54 and 11,365.88 is: 15,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.84 : 25,440.54 = 11,365.88 : x
  2. Step 2: Convert to fraction form
    18,434.84/25,440.54 = 11,365.88/x
  3. Step 3: Cross multiply
    18,434.84x = 25,440.54 × 11,365.88
  4. Step 4: Simplify right side
    18,434.84x = 289,154,124.78
  5. Step 5: Solve for x
    x = 289,154,124.78/18,434.84
  6. Step 6: Final answer
    x = 15,685.20

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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.