Home / 12,558.39-18,824.49-4,235.55

Finding the Fourth Proportional to 12,558.39, 18,824.49 and 4,235.55

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Solution

The fourth proportional to 12,558.39, 18,824.49 and 4,235.55 is: 6,348.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.39 : 18,824.49 = 4,235.55 : x
  2. Step 2: Convert to fraction form
    12,558.39/18,824.49 = 4,235.55/x
  3. Step 3: Cross multiply
    12,558.39x = 18,824.49 × 4,235.55
  4. Step 4: Simplify right side
    12,558.39x = 79,732,068.62
  5. Step 5: Solve for x
    x = 79,732,068.62/12,558.39
  6. Step 6: Final answer
    x = 6,348.91

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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.