Home / 18,897.84-26,085-11,819.76

Finding the Fourth Proportional to 18,897.84, 26,085 and 11,819.76

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Solution

The fourth proportional to 18,897.84, 26,085 and 11,819.76 is: 16,315.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.84 : 26,085 = 11,819.76 : x
  2. Step 2: Convert to fraction form
    18,897.84/26,085 = 11,819.76/x
  3. Step 3: Cross multiply
    18,897.84x = 26,085 × 11,819.76
  4. Step 4: Simplify right side
    18,897.84x = 308,318,439.60
  5. Step 5: Solve for x
    x = 308,318,439.60/18,897.84
  6. Step 6: Final answer
    x = 16,315.01

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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.