Home / 15,767.58-21,739.05-12,924.66

Finding the Fourth Proportional to 15,767.58, 21,739.05 and 12,924.66

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Solution

The fourth proportional to 15,767.58, 21,739.05 and 12,924.66 is: 17,819.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.58 : 21,739.05 = 12,924.66 : x
  2. Step 2: Convert to fraction form
    15,767.58/21,739.05 = 12,924.66/x
  3. Step 3: Cross multiply
    15,767.58x = 21,739.05 × 12,924.66
  4. Step 4: Simplify right side
    15,767.58x = 280,969,829.97
  5. Step 5: Solve for x
    x = 280,969,829.97/15,767.58
  6. Step 6: Final answer
    x = 17,819.46

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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.