Home / 14,029.60-21,044.40-7,872.80

Finding the Fourth Proportional to 14,029.60, 21,044.40 and 7,872.80

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Solution

The fourth proportional to 14,029.60, 21,044.40 and 7,872.80 is: 11,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,029.60 : 21,044.40 = 7,872.80 : x
  2. Step 2: Convert to fraction form
    14,029.60/21,044.40 = 7,872.80/x
  3. Step 3: Cross multiply
    14,029.60x = 21,044.40 × 7,872.80
  4. Step 4: Simplify right side
    14,029.60x = 165,678,352.32
  5. Step 5: Solve for x
    x = 165,678,352.32/14,029.60
  6. Step 6: Final answer
    x = 11,809.20

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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.