Home / 15,423.96-21,285.09-8,350.41

Finding the Fourth Proportional to 15,423.96, 21,285.09 and 8,350.41

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Solution

The fourth proportional to 15,423.96, 21,285.09 and 8,350.41 is: 11,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.96 : 21,285.09 = 8,350.41 : x
  2. Step 2: Convert to fraction form
    15,423.96/21,285.09 = 8,350.41/x
  3. Step 3: Cross multiply
    15,423.96x = 21,285.09 × 8,350.41
  4. Step 4: Simplify right side
    15,423.96x = 177,739,228.39
  5. Step 5: Solve for x
    x = 177,739,228.39/15,423.96
  6. Step 6: Final answer
    x = 11,523.58

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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.