Home / 16,877.70-25,316.55-12,187.80

Finding the Fourth Proportional to 16,877.70, 25,316.55 and 12,187.80

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Solution

The fourth proportional to 16,877.70, 25,316.55 and 12,187.80 is: 18,281.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,877.70 : 25,316.55 = 12,187.80 : x
  2. Step 2: Convert to fraction form
    16,877.70/25,316.55 = 12,187.80/x
  3. Step 3: Cross multiply
    16,877.70x = 25,316.55 × 12,187.80
  4. Step 4: Simplify right side
    16,877.70x = 308,553,048.09
  5. Step 5: Solve for x
    x = 308,553,048.09/16,877.70
  6. Step 6: Final answer
    x = 18,281.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.