Home / 13,484.68-18,684.27-13,178.50

Finding the Fourth Proportional to 13,484.68, 18,684.27 and 13,178.50

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Solution

The fourth proportional to 13,484.68, 18,684.27 and 13,178.50 is: 18,260.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,484.68 : 18,684.27 = 13,178.50 : x
  2. Step 2: Convert to fraction form
    13,484.68/18,684.27 = 13,178.50/x
  3. Step 3: Cross multiply
    13,484.68x = 18,684.27 × 13,178.50
  4. Step 4: Simplify right side
    13,484.68x = 246,230,605.48
  5. Step 5: Solve for x
    x = 246,230,605.48/13,484.68
  6. Step 6: Final answer
    x = 18,260.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.