Home / 13,114.08-18,222.72-12,948.48

Finding the Fourth Proportional to 13,114.08, 18,222.72 and 12,948.48

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Solution

The fourth proportional to 13,114.08, 18,222.72 and 12,948.48 is: 17,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,114.08 : 18,222.72 = 12,948.48 : x
  2. Step 2: Convert to fraction form
    13,114.08/18,222.72 = 12,948.48/x
  3. Step 3: Cross multiply
    13,114.08x = 18,222.72 × 12,948.48
  4. Step 4: Simplify right side
    13,114.08x = 235,956,525.47
  5. Step 5: Solve for x
    x = 235,956,525.47/13,114.08
  6. Step 6: Final answer
    x = 17,992.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.