Home / 13,007.67-19,522.45-12,187.55

Finding the Fourth Proportional to 13,007.67, 19,522.45 and 12,187.55

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Solution

The fourth proportional to 13,007.67, 19,522.45 and 12,187.55 is: 18,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.67 : 19,522.45 = 12,187.55 : x
  2. Step 2: Convert to fraction form
    13,007.67/19,522.45 = 12,187.55/x
  3. Step 3: Cross multiply
    13,007.67x = 19,522.45 × 12,187.55
  4. Step 4: Simplify right side
    13,007.67x = 237,930,835.50
  5. Step 5: Solve for x
    x = 237,930,835.50/13,007.67
  6. Step 6: Final answer
    x = 18,291.58

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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.