Home / 15,523.92-21,423.14-8,450.32

Finding the Fourth Proportional to 15,523.92, 21,423.14 and 8,450.32

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Solution

The fourth proportional to 15,523.92, 21,423.14 and 8,450.32 is: 11,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.92 : 21,423.14 = 8,450.32 : x
  2. Step 2: Convert to fraction form
    15,523.92/21,423.14 = 8,450.32/x
  3. Step 3: Cross multiply
    15,523.92x = 21,423.14 × 8,450.32
  4. Step 4: Simplify right side
    15,523.92x = 181,032,346.15
  5. Step 5: Solve for x
    x = 181,032,346.15/15,523.92
  6. Step 6: Final answer
    x = 11,661.51

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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.