Home / 14,042.40-21,049.20-7,792.80

Finding the Fourth Proportional to 14,042.40, 21,049.20 and 7,792.80

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Solution

The fourth proportional to 14,042.40, 21,049.20 and 7,792.80 is: 11,681.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.40 : 21,049.20 = 7,792.80 : x
  2. Step 2: Convert to fraction form
    14,042.40/21,049.20 = 7,792.80/x
  3. Step 3: Cross multiply
    14,042.40x = 21,049.20 × 7,792.80
  4. Step 4: Simplify right side
    14,042.40x = 164,032,205.76
  5. Step 5: Solve for x
    x = 164,032,205.76/14,042.40
  6. Step 6: Final answer
    x = 11,681.21

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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.