Home / 18,753.80-28,126.88-6,903.52

Finding the Fourth Proportional to 18,753.80, 28,126.88 and 6,903.52

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Solution

The fourth proportional to 18,753.80, 28,126.88 and 6,903.52 is: 10,353.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.80 : 28,126.88 = 6,903.52 : x
  2. Step 2: Convert to fraction form
    18,753.80/28,126.88 = 6,903.52/x
  3. Step 3: Cross multiply
    18,753.80x = 28,126.88 × 6,903.52
  4. Step 4: Simplify right side
    18,753.80x = 194,174,478.62
  5. Step 5: Solve for x
    x = 194,174,478.62/18,753.80
  6. Step 6: Final answer
    x = 10,353.87

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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.