Home / 12,518.88-18,779.40-5,941.68

Finding the Fourth Proportional to 12,518.88, 18,779.40 and 5,941.68

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Solution

The fourth proportional to 12,518.88, 18,779.40 and 5,941.68 is: 8,913.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.88 : 18,779.40 = 5,941.68 : x
  2. Step 2: Convert to fraction form
    12,518.88/18,779.40 = 5,941.68/x
  3. Step 3: Cross multiply
    12,518.88x = 18,779.40 × 5,941.68
  4. Step 4: Simplify right side
    12,518.88x = 111,581,185.39
  5. Step 5: Solve for x
    x = 111,581,185.39/12,518.88
  6. Step 6: Final answer
    x = 8,913.03

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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.