Home / 18,619.40-27,934.48-5,471.77

Finding the Fourth Proportional to 18,619.40, 27,934.48 and 5,471.77

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Solution

The fourth proportional to 18,619.40, 27,934.48 and 5,471.77 is: 8,209.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.40 : 27,934.48 = 5,471.77 : x
  2. Step 2: Convert to fraction form
    18,619.40/27,934.48 = 5,471.77/x
  3. Step 3: Cross multiply
    18,619.40x = 27,934.48 × 5,471.77
  4. Step 4: Simplify right side
    18,619.40x = 152,851,105.63
  5. Step 5: Solve for x
    x = 152,851,105.63/18,619.40
  6. Step 6: Final answer
    x = 8,209.24

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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.