Home / 15,523.83-21,422.28-8,450.28

Finding the Fourth Proportional to 15,523.83, 21,422.28 and 8,450.28

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Solution

The fourth proportional to 15,523.83, 21,422.28 and 8,450.28 is: 11,661.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,523.83 : 21,422.28 = 8,450.28 : x
  2. Step 2: Convert to fraction form
    15,523.83/21,422.28 = 8,450.28/x
  3. Step 3: Cross multiply
    15,523.83x = 21,422.28 × 8,450.28
  4. Step 4: Simplify right side
    15,523.83x = 181,024,264.24
  5. Step 5: Solve for x
    x = 181,024,264.24/15,523.83
  6. Step 6: Final answer
    x = 11,661.06

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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.