Home / 15,423.14-21,283.94-8,349.54

Finding the Fourth Proportional to 15,423.14, 21,283.94 and 8,349.54

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Solution

The fourth proportional to 15,423.14, 21,283.94 and 8,349.54 is: 11,522.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423.14 : 21,283.94 = 8,349.54 : x
  2. Step 2: Convert to fraction form
    15,423.14/21,283.94 = 8,349.54/x
  3. Step 3: Cross multiply
    15,423.14x = 21,283.94 × 8,349.54
  4. Step 4: Simplify right side
    15,423.14x = 177,711,108.39
  5. Step 5: Solve for x
    x = 177,711,108.39/15,423.14
  6. Step 6: Final answer
    x = 11,522.37

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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.