Home / 18,631.98-27,953.64-5,484.47

Finding the Fourth Proportional to 18,631.98, 27,953.64 and 5,484.47

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Solution

The fourth proportional to 18,631.98, 27,953.64 and 5,484.47 is: 8,228.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.98 : 27,953.64 = 5,484.47 : x
  2. Step 2: Convert to fraction form
    18,631.98/27,953.64 = 5,484.47/x
  3. Step 3: Cross multiply
    18,631.98x = 27,953.64 × 5,484.47
  4. Step 4: Simplify right side
    18,631.98x = 153,310,760.20
  5. Step 5: Solve for x
    x = 153,310,760.20/18,631.98
  6. Step 6: Final answer
    x = 8,228.37

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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.