Home / 15,900.57-21,963.45-12,100.66

Finding the Fourth Proportional to 15,900.57, 21,963.45 and 12,100.66

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Solution

The fourth proportional to 15,900.57, 21,963.45 and 12,100.66 is: 16,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900.57 : 21,963.45 = 12,100.66 : x
  2. Step 2: Convert to fraction form
    15,900.57/21,963.45 = 12,100.66/x
  3. Step 3: Cross multiply
    15,900.57x = 21,963.45 × 12,100.66
  4. Step 4: Simplify right side
    15,900.57x = 265,772,231.35
  5. Step 5: Solve for x
    x = 265,772,231.35/15,900.57
  6. Step 6: Final answer
    x = 16,714.64

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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.