Home / 13,446.62-18,554.81-7,477.92

Finding the Fourth Proportional to 13,446.62, 18,554.81 and 7,477.92

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Solution

The fourth proportional to 13,446.62, 18,554.81 and 7,477.92 is: 10,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.62 : 18,554.81 = 7,477.92 : x
  2. Step 2: Convert to fraction form
    13,446.62/18,554.81 = 7,477.92/x
  3. Step 3: Cross multiply
    13,446.62x = 18,554.81 × 7,477.92
  4. Step 4: Simplify right side
    13,446.62x = 138,751,347.41
  5. Step 5: Solve for x
    x = 138,751,347.41/13,446.62
  6. Step 6: Final answer
    x = 10,318.68

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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.