Home / 18,456.08-25,460.53-12,079.86

Finding the Fourth Proportional to 18,456.08, 25,460.53 and 12,079.86

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Solution

The fourth proportional to 18,456.08, 25,460.53 and 12,079.86 is: 16,664.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.08 : 25,460.53 = 12,079.86 : x
  2. Step 2: Convert to fraction form
    18,456.08/25,460.53 = 12,079.86/x
  3. Step 3: Cross multiply
    18,456.08x = 25,460.53 × 12,079.86
  4. Step 4: Simplify right side
    18,456.08x = 307,559,607.73
  5. Step 5: Solve for x
    x = 307,559,607.73/18,456.08
  6. Step 6: Final answer
    x = 16,664.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.