Home / 14,649.90-21,977.58-4,789.71

Finding the Fourth Proportional to 14,649.90, 21,977.58 and 4,789.71

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Solution

The fourth proportional to 14,649.90, 21,977.58 and 4,789.71 is: 7,185.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.90 : 21,977.58 = 4,789.71 : x
  2. Step 2: Convert to fraction form
    14,649.90/21,977.58 = 4,789.71/x
  3. Step 3: Cross multiply
    14,649.90x = 21,977.58 × 4,789.71
  4. Step 4: Simplify right side
    14,649.90x = 105,266,234.70
  5. Step 5: Solve for x
    x = 105,266,234.70/14,649.90
  6. Step 6: Final answer
    x = 7,185.46

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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.