Home / 15,447.21-21,318.07-8,733.46

Finding the Fourth Proportional to 15,447.21, 21,318.07 and 8,733.46

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Solution

The fourth proportional to 15,447.21, 21,318.07 and 8,733.46 is: 12,052.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.21 : 21,318.07 = 8,733.46 : x
  2. Step 2: Convert to fraction form
    15,447.21/21,318.07 = 8,733.46/x
  3. Step 3: Cross multiply
    15,447.21x = 21,318.07 × 8,733.46
  4. Step 4: Simplify right side
    15,447.21x = 186,180,436.49
  5. Step 5: Solve for x
    x = 186,180,436.49/15,447.21
  6. Step 6: Final answer
    x = 12,052.69

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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.