Home / 16,721.61-25,080.36-9,705.44

Finding the Fourth Proportional to 16,721.61, 25,080.36 and 9,705.44

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Solution

The fourth proportional to 16,721.61, 25,080.36 and 9,705.44 is: 14,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,721.61 : 25,080.36 = 9,705.44 : x
  2. Step 2: Convert to fraction form
    16,721.61/25,080.36 = 9,705.44/x
  3. Step 3: Cross multiply
    16,721.61x = 25,080.36 × 9,705.44
  4. Step 4: Simplify right side
    16,721.61x = 243,415,929.16
  5. Step 5: Solve for x
    x = 243,415,929.16/16,721.61
  6. Step 6: Final answer
    x = 14,556.97

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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.