Home / 15,474.33-21,354.45-8,400.60

Finding the Fourth Proportional to 15,474.33, 21,354.45 and 8,400.60

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Solution

The fourth proportional to 15,474.33, 21,354.45 and 8,400.60 is: 11,592.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.33 : 21,354.45 = 8,400.60 : x
  2. Step 2: Convert to fraction form
    15,474.33/21,354.45 = 8,400.60/x
  3. Step 3: Cross multiply
    15,474.33x = 21,354.45 × 8,400.60
  4. Step 4: Simplify right side
    15,474.33x = 179,390,192.67
  5. Step 5: Solve for x
    x = 179,390,192.67/15,474.33
  6. Step 6: Final answer
    x = 11,592.76

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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.