Home / 15,474.19-21,354.22-8,400.60

Finding the Fourth Proportional to 15,474.19, 21,354.22 and 8,400.60

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Solution

The fourth proportional to 15,474.19, 21,354.22 and 8,400.60 is: 11,592.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.19 : 21,354.22 = 8,400.60 : x
  2. Step 2: Convert to fraction form
    15,474.19/21,354.22 = 8,400.60/x
  3. Step 3: Cross multiply
    15,474.19x = 21,354.22 × 8,400.60
  4. Step 4: Simplify right side
    15,474.19x = 179,388,260.53
  5. Step 5: Solve for x
    x = 179,388,260.53/15,474.19
  6. Step 6: Final answer
    x = 11,592.74

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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.