Home / 12,470.99-18,711.34-5,540.63

Finding the Fourth Proportional to 12,470.99, 18,711.34 and 5,540.63

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Solution

The fourth proportional to 12,470.99, 18,711.34 and 5,540.63 is: 8,313.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.99 : 18,711.34 = 5,540.63 : x
  2. Step 2: Convert to fraction form
    12,470.99/18,711.34 = 5,540.63/x
  3. Step 3: Cross multiply
    12,470.99x = 18,711.34 × 5,540.63
  4. Step 4: Simplify right side
    12,470.99x = 103,672,504.34
  5. Step 5: Solve for x
    x = 103,672,504.34/12,470.99
  6. Step 6: Final answer
    x = 8,313.10

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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.