Home / 13,756.72-20,620.30-9,011.06

Finding the Fourth Proportional to 13,756.72, 20,620.30 and 9,011.06

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Solution

The fourth proportional to 13,756.72, 20,620.30 and 9,011.06 is: 13,506.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,756.72 : 20,620.30 = 9,011.06 : x
  2. Step 2: Convert to fraction form
    13,756.72/20,620.30 = 9,011.06/x
  3. Step 3: Cross multiply
    13,756.72x = 20,620.30 × 9,011.06
  4. Step 4: Simplify right side
    13,756.72x = 185,810,760.52
  5. Step 5: Solve for x
    x = 185,810,760.52/13,756.72
  6. Step 6: Final answer
    x = 13,506.91

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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.