Home / 18,925.96-28,400.69-12,853.39

Finding the Fourth Proportional to 18,925.96, 28,400.69 and 12,853.39

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Solution

The fourth proportional to 18,925.96, 28,400.69 and 12,853.39 is: 19,288.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,925.96 : 28,400.69 = 12,853.39 : x
  2. Step 2: Convert to fraction form
    18,925.96/28,400.69 = 12,853.39/x
  3. Step 3: Cross multiply
    18,925.96x = 28,400.69 × 12,853.39
  4. Step 4: Simplify right side
    18,925.96x = 365,045,144.84
  5. Step 5: Solve for x
    x = 365,045,144.84/18,925.96
  6. Step 6: Final answer
    x = 19,288.06

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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.