Home / 16,840.96-25,228.54-12,390.52

Finding the Fourth Proportional to 16,840.96, 25,228.54 and 12,390.52

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Solution

The fourth proportional to 16,840.96, 25,228.54 and 12,390.52 is: 18,561.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.96 : 25,228.54 = 12,390.52 : x
  2. Step 2: Convert to fraction form
    16,840.96/25,228.54 = 12,390.52/x
  3. Step 3: Cross multiply
    16,840.96x = 25,228.54 × 12,390.52
  4. Step 4: Simplify right side
    16,840.96x = 312,594,729.44
  5. Step 5: Solve for x
    x = 312,594,729.44/16,840.96
  6. Step 6: Final answer
    x = 18,561.57

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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.