Home / 15,477.73-21,359.70-8,404.60

Finding the Fourth Proportional to 15,477.73, 21,359.70 and 8,404.60

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Solution

The fourth proportional to 15,477.73, 21,359.70 and 8,404.60 is: 11,598.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,477.73 : 21,359.70 = 8,404.60 : x
  2. Step 2: Convert to fraction form
    15,477.73/21,359.70 = 8,404.60/x
  3. Step 3: Cross multiply
    15,477.73x = 21,359.70 × 8,404.60
  4. Step 4: Simplify right side
    15,477.73x = 179,519,734.62
  5. Step 5: Solve for x
    x = 179,519,734.62/15,477.73
  6. Step 6: Final answer
    x = 11,598.58

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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.