Home / 19,662.36-29,493.35-7,972.80

Finding the Fourth Proportional to 19,662.36, 29,493.35 and 7,972.80

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Solution

The fourth proportional to 19,662.36, 29,493.35 and 7,972.80 is: 11,959.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.36 : 29,493.35 = 7,972.80 : x
  2. Step 2: Convert to fraction form
    19,662.36/29,493.35 = 7,972.80/x
  3. Step 3: Cross multiply
    19,662.36x = 29,493.35 × 7,972.80
  4. Step 4: Simplify right side
    19,662.36x = 235,144,580.88
  5. Step 5: Solve for x
    x = 235,144,580.88/19,662.36
  6. Step 6: Final answer
    x = 11,959.12

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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.