Home / 15,544.98-21,451.45-8,471.25

Finding the Fourth Proportional to 15,544.98, 21,451.45 and 8,471.25

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Solution

The fourth proportional to 15,544.98, 21,451.45 and 8,471.25 is: 11,689.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,544.98 : 21,451.45 = 8,471.25 : x
  2. Step 2: Convert to fraction form
    15,544.98/21,451.45 = 8,471.25/x
  3. Step 3: Cross multiply
    15,544.98x = 21,451.45 × 8,471.25
  4. Step 4: Simplify right side
    15,544.98x = 181,720,649.44
  5. Step 5: Solve for x
    x = 181,720,649.44/15,544.98
  6. Step 6: Final answer
    x = 11,689.99

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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.