Home / 15,524.07-21,423.30-8,450.53

Finding the Fourth Proportional to 15,524.07, 21,423.30 and 8,450.53

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Solution

The fourth proportional to 15,524.07, 21,423.30 and 8,450.53 is: 11,661.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,524.07 : 21,423.30 = 8,450.53 : x
  2. Step 2: Convert to fraction form
    15,524.07/21,423.30 = 8,450.53/x
  3. Step 3: Cross multiply
    15,524.07x = 21,423.30 × 8,450.53
  4. Step 4: Simplify right side
    15,524.07x = 181,038,239.35
  5. Step 5: Solve for x
    x = 181,038,239.35/15,524.07
  6. Step 6: Final answer
    x = 11,661.78

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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.