Home / 18,950.85-26,162.87-13,140.45

Finding the Fourth Proportional to 18,950.85, 26,162.87 and 13,140.45

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Solution

The fourth proportional to 18,950.85, 26,162.87 and 13,140.45 is: 18,141.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.85 : 26,162.87 = 13,140.45 : x
  2. Step 2: Convert to fraction form
    18,950.85/26,162.87 = 13,140.45/x
  3. Step 3: Cross multiply
    18,950.85x = 26,162.87 × 13,140.45
  4. Step 4: Simplify right side
    18,950.85x = 343,791,819.39
  5. Step 5: Solve for x
    x = 343,791,819.39/18,950.85
  6. Step 6: Final answer
    x = 18,141.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.