Home / 18,555.99-27,838.59-5,408.47

Finding the Fourth Proportional to 18,555.99, 27,838.59 and 5,408.47

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Solution

The fourth proportional to 18,555.99, 27,838.59 and 5,408.47 is: 8,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,555.99 : 27,838.59 = 5,408.47 : x
  2. Step 2: Convert to fraction form
    18,555.99/27,838.59 = 5,408.47/x
  3. Step 3: Cross multiply
    18,555.99x = 27,838.59 × 5,408.47
  4. Step 4: Simplify right side
    18,555.99x = 150,564,178.86
  5. Step 5: Solve for x
    x = 150,564,178.86/18,555.99
  6. Step 6: Final answer
    x = 8,114.05

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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.