Home / 15,772.19-21,765.24-8,698.73

Finding the Fourth Proportional to 15,772.19, 21,765.24 and 8,698.73

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Solution

The fourth proportional to 15,772.19, 21,765.24 and 8,698.73 is: 12,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.19 : 21,765.24 = 8,698.73 : x
  2. Step 2: Convert to fraction form
    15,772.19/21,765.24 = 8,698.73/x
  3. Step 3: Cross multiply
    15,772.19x = 21,765.24 × 8,698.73
  4. Step 4: Simplify right side
    15,772.19x = 189,329,837.32
  5. Step 5: Solve for x
    x = 189,329,837.32/15,772.19
  6. Step 6: Final answer
    x = 12,004.03

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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.