Home / 16,286.40-22,485.60-10,000.80

Finding the Fourth Proportional to 16,286.40, 22,485.60 and 10,000.80

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Solution

The fourth proportional to 16,286.40, 22,485.60 and 10,000.80 is: 13,807.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,286.40 : 22,485.60 = 10,000.80 : x
  2. Step 2: Convert to fraction form
    16,286.40/22,485.60 = 10,000.80/x
  3. Step 3: Cross multiply
    16,286.40x = 22,485.60 × 10,000.80
  4. Step 4: Simplify right side
    16,286.40x = 224,873,988.48
  5. Step 5: Solve for x
    x = 224,873,988.48/16,286.40
  6. Step 6: Final answer
    x = 13,807.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.