Home / 13,780.41-20,670.15-5,989.23

Finding the Fourth Proportional to 13,780.41, 20,670.15 and 5,989.23

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Solution

The fourth proportional to 13,780.41, 20,670.15 and 5,989.23 is: 8,983.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,780.41 : 20,670.15 = 5,989.23 : x
  2. Step 2: Convert to fraction form
    13,780.41/20,670.15 = 5,989.23/x
  3. Step 3: Cross multiply
    13,780.41x = 20,670.15 × 5,989.23
  4. Step 4: Simplify right side
    13,780.41x = 123,798,282.48
  5. Step 5: Solve for x
    x = 123,798,282.48/13,780.41
  6. Step 6: Final answer
    x = 8,983.64

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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.