Home / 15,473.92-21,353.82-8,400.44

Finding the Fourth Proportional to 15,473.92, 21,353.82 and 8,400.44

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Solution

The fourth proportional to 15,473.92, 21,353.82 and 8,400.44 is: 11,592.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,473.92 : 21,353.82 = 8,400.44 : x
  2. Step 2: Convert to fraction form
    15,473.92/21,353.82 = 8,400.44/x
  3. Step 3: Cross multiply
    15,473.92x = 21,353.82 × 8,400.44
  4. Step 4: Simplify right side
    15,473.92x = 179,381,483.68
  5. Step 5: Solve for x
    x = 179,381,483.68/15,473.92
  6. Step 6: Final answer
    x = 11,592.50

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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.