Home / 19,743.12-29,622.90-8,644.10

Finding the Fourth Proportional to 19,743.12, 29,622.90 and 8,644.10

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Solution

The fourth proportional to 19,743.12, 29,622.90 and 8,644.10 is: 12,969.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,743.12 : 29,622.90 = 8,644.10 : x
  2. Step 2: Convert to fraction form
    19,743.12/29,622.90 = 8,644.10/x
  3. Step 3: Cross multiply
    19,743.12x = 29,622.90 × 8,644.10
  4. Step 4: Simplify right side
    19,743.12x = 256,063,309.89
  5. Step 5: Solve for x
    x = 256,063,309.89/19,743.12
  6. Step 6: Final answer
    x = 12,969.75

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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.