Home / 15,451.94-21,325-8,738.76

Finding the Fourth Proportional to 15,451.94, 21,325 and 8,738.76

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Solution

The fourth proportional to 15,451.94, 21,325 and 8,738.76 is: 12,060.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.94 : 21,325 = 8,738.76 : x
  2. Step 2: Convert to fraction form
    15,451.94/21,325 = 8,738.76/x
  3. Step 3: Cross multiply
    15,451.94x = 21,325 × 8,738.76
  4. Step 4: Simplify right side
    15,451.94x = 186,354,057
  5. Step 5: Solve for x
    x = 186,354,057/15,451.94
  6. Step 6: Final answer
    x = 12,060.24

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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.