Home / 12,322.84-18,486.78-4,531.72

Finding the Fourth Proportional to 12,322.84, 18,486.78 and 4,531.72

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Solution

The fourth proportional to 12,322.84, 18,486.78 and 4,531.72 is: 6,798.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,322.84 : 18,486.78 = 4,531.72 : x
  2. Step 2: Convert to fraction form
    12,322.84/18,486.78 = 4,531.72/x
  3. Step 3: Cross multiply
    12,322.84x = 18,486.78 × 4,531.72
  4. Step 4: Simplify right side
    12,322.84x = 83,776,910.66
  5. Step 5: Solve for x
    x = 83,776,910.66/12,322.84
  6. Step 6: Final answer
    x = 6,798.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.