Home / 15,523.83-21,422.34-8,450.10

Finding the Fourth Proportional to 15,523.83, 21,422.34 and 8,450.10

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Solution

The fourth proportional to 15,523.83, 21,422.34 and 8,450.10 is: 11,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.83 : 21,422.34 = 8,450.10 : x
  2. Step 2: Convert to fraction form
    15,523.83/21,422.34 = 8,450.10/x
  3. Step 3: Cross multiply
    15,523.83x = 21,422.34 × 8,450.10
  4. Step 4: Simplify right side
    15,523.83x = 181,020,915.23
  5. Step 5: Solve for x
    x = 181,020,915.23/15,523.83
  6. Step 6: Final answer
    x = 11,660.84

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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.