Home / 15,922.86-21,900.48-12,772.14

Finding the Fourth Proportional to 15,922.86, 21,900.48 and 12,772.14

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Solution

The fourth proportional to 15,922.86, 21,900.48 and 12,772.14 is: 17,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,922.86 : 21,900.48 = 12,772.14 : x
  2. Step 2: Convert to fraction form
    15,922.86/21,900.48 = 12,772.14/x
  3. Step 3: Cross multiply
    15,922.86x = 21,900.48 × 12,772.14
  4. Step 4: Simplify right side
    15,922.86x = 279,715,996.63
  5. Step 5: Solve for x
    x = 279,715,996.63/15,922.86
  6. Step 6: Final answer
    x = 17,566.94

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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.