Home / 13,743.45-18,964.67-8,437.41

Finding the Fourth Proportional to 13,743.45, 18,964.67 and 8,437.41

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Solution

The fourth proportional to 13,743.45, 18,964.67 and 8,437.41 is: 11,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,743.45 : 18,964.67 = 8,437.41 : x
  2. Step 2: Convert to fraction form
    13,743.45/18,964.67 = 8,437.41/x
  3. Step 3: Cross multiply
    13,743.45x = 18,964.67 × 8,437.41
  4. Step 4: Simplify right side
    13,743.45x = 160,012,654.12
  5. Step 5: Solve for x
    x = 160,012,654.12/13,743.45
  6. Step 6: Final answer
    x = 11,642.83

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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.