Home / 14,940.14-20,612.73-8,478.70

Finding the Fourth Proportional to 14,940.14, 20,612.73 and 8,478.70

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Solution

The fourth proportional to 14,940.14, 20,612.73 and 8,478.70 is: 11,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,940.14 : 20,612.73 = 8,478.70 : x
  2. Step 2: Convert to fraction form
    14,940.14/20,612.73 = 8,478.70/x
  3. Step 3: Cross multiply
    14,940.14x = 20,612.73 × 8,478.70
  4. Step 4: Simplify right side
    14,940.14x = 174,769,226.58
  5. Step 5: Solve for x
    x = 174,769,226.58/14,940.14
  6. Step 6: Final answer
    x = 11,697.97

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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.