Home / 19,774.45-29,644.46-8,080.21

Finding the Fourth Proportional to 19,774.45, 29,644.46 and 8,080.21

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Solution

The fourth proportional to 19,774.45, 29,644.46 and 8,080.21 is: 12,113.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,774.45 : 29,644.46 = 8,080.21 : x
  2. Step 2: Convert to fraction form
    19,774.45/29,644.46 = 8,080.21/x
  3. Step 3: Cross multiply
    19,774.45x = 29,644.46 × 8,080.21
  4. Step 4: Simplify right side
    19,774.45x = 239,533,421.74
  5. Step 5: Solve for x
    x = 239,533,421.74/19,774.45
  6. Step 6: Final answer
    x = 12,113.28

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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.