Home / 15,618.44-21,566.58-11,155.88

Finding the Fourth Proportional to 15,618.44, 21,566.58 and 11,155.88

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Solution

The fourth proportional to 15,618.44, 21,566.58 and 11,155.88 is: 15,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.44 : 21,566.58 = 11,155.88 : x
  2. Step 2: Convert to fraction form
    15,618.44/21,566.58 = 11,155.88/x
  3. Step 3: Cross multiply
    15,618.44x = 21,566.58 × 11,155.88
  4. Step 4: Simplify right side
    15,618.44x = 240,594,178.49
  5. Step 5: Solve for x
    x = 240,594,178.49/15,618.44
  6. Step 6: Final answer
    x = 15,404.49

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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.