Home / 13,548.80-20,309.34-9,166.72

Finding the Fourth Proportional to 13,548.80, 20,309.34 and 9,166.72

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Solution

The fourth proportional to 13,548.80, 20,309.34 and 9,166.72 is: 13,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.80 : 20,309.34 = 9,166.72 : x
  2. Step 2: Convert to fraction form
    13,548.80/20,309.34 = 9,166.72/x
  3. Step 3: Cross multiply
    13,548.80x = 20,309.34 × 9,166.72
  4. Step 4: Simplify right side
    13,548.80x = 186,170,033.16
  5. Step 5: Solve for x
    x = 186,170,033.16/13,548.80
  6. Step 6: Final answer
    x = 13,740.70

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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.