Home / 13,527.19-20,290.72-3,666.45

Finding the Fourth Proportional to 13,527.19, 20,290.72 and 3,666.45

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Solution

The fourth proportional to 13,527.19, 20,290.72 and 3,666.45 is: 5,499.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,527.19 : 20,290.72 = 3,666.45 : x
  2. Step 2: Convert to fraction form
    13,527.19/20,290.72 = 3,666.45/x
  3. Step 3: Cross multiply
    13,527.19x = 20,290.72 × 3,666.45
  4. Step 4: Simplify right side
    13,527.19x = 74,394,910.34
  5. Step 5: Solve for x
    x = 74,394,910.34/13,527.19
  6. Step 6: Final answer
    x = 5,499.66

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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.