Home / 13,980.42-20,905.83-10,824.66

Finding the Fourth Proportional to 13,980.42, 20,905.83 and 10,824.66

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Solution

The fourth proportional to 13,980.42, 20,905.83 and 10,824.66 is: 16,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,980.42 : 20,905.83 = 10,824.66 : x
  2. Step 2: Convert to fraction form
    13,980.42/20,905.83 = 10,824.66/x
  3. Step 3: Cross multiply
    13,980.42x = 20,905.83 × 10,824.66
  4. Step 4: Simplify right side
    13,980.42x = 226,298,501.77
  5. Step 5: Solve for x
    x = 226,298,501.77/13,980.42
  6. Step 6: Final answer
    x = 16,186.82

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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.