Home / 14,220.12-19,622.82-7,932.36

Finding the Fourth Proportional to 14,220.12, 19,622.82 and 7,932.36

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Solution

The fourth proportional to 14,220.12, 19,622.82 and 7,932.36 is: 10,946.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.12 : 19,622.82 = 7,932.36 : x
  2. Step 2: Convert to fraction form
    14,220.12/19,622.82 = 7,932.36/x
  3. Step 3: Cross multiply
    14,220.12x = 19,622.82 × 7,932.36
  4. Step 4: Simplify right side
    14,220.12x = 155,655,272.46
  5. Step 5: Solve for x
    x = 155,655,272.46/14,220.12
  6. Step 6: Final answer
    x = 10,946.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.