Home / 18,834.05-25,979.86-12,117.53

Finding the Fourth Proportional to 18,834.05, 25,979.86 and 12,117.53

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Solution

The fourth proportional to 18,834.05, 25,979.86 and 12,117.53 is: 16,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.05 : 25,979.86 = 12,117.53 : x
  2. Step 2: Convert to fraction form
    18,834.05/25,979.86 = 12,117.53/x
  3. Step 3: Cross multiply
    18,834.05x = 25,979.86 × 12,117.53
  4. Step 4: Simplify right side
    18,834.05x = 314,811,732.95
  5. Step 5: Solve for x
    x = 314,811,732.95/18,834.05
  6. Step 6: Final answer
    x = 16,715.03

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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.