Home / 12,383.85-18,575.55-4,988.12

Finding the Fourth Proportional to 12,383.85, 18,575.55 and 4,988.12

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Solution

The fourth proportional to 12,383.85, 18,575.55 and 4,988.12 is: 7,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.85 : 18,575.55 = 4,988.12 : x
  2. Step 2: Convert to fraction form
    12,383.85/18,575.55 = 4,988.12/x
  3. Step 3: Cross multiply
    12,383.85x = 18,575.55 × 4,988.12
  4. Step 4: Simplify right side
    12,383.85x = 92,657,072.47
  5. Step 5: Solve for x
    x = 92,657,072.47/12,383.85
  6. Step 6: Final answer
    x = 7,482.09

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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.