Home / 13,669.85-20,497.49-7,079.69

Finding the Fourth Proportional to 13,669.85, 20,497.49 and 7,079.69

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Solution

The fourth proportional to 13,669.85, 20,497.49 and 7,079.69 is: 10,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,669.85 : 20,497.49 = 7,079.69 : x
  2. Step 2: Convert to fraction form
    13,669.85/20,497.49 = 7,079.69/x
  3. Step 3: Cross multiply
    13,669.85x = 20,497.49 × 7,079.69
  4. Step 4: Simplify right side
    13,669.85x = 145,115,908.52
  5. Step 5: Solve for x
    x = 145,115,908.52/13,669.85
  6. Step 6: Final answer
    x = 10,615.76

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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.