Home / 18,900.37-28,354.78-5,753.76

Finding the Fourth Proportional to 18,900.37, 28,354.78 and 5,753.76

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Solution

The fourth proportional to 18,900.37, 28,354.78 and 5,753.76 is: 8,631.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,900.37 : 28,354.78 = 5,753.76 : x
  2. Step 2: Convert to fraction form
    18,900.37/28,354.78 = 5,753.76/x
  3. Step 3: Cross multiply
    18,900.37x = 28,354.78 × 5,753.76
  4. Step 4: Simplify right side
    18,900.37x = 163,146,570.20
  5. Step 5: Solve for x
    x = 163,146,570.20/18,900.37
  6. Step 6: Final answer
    x = 8,631.93

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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.