Home / 16,840.20-25,204.14-12,670.12

Finding the Fourth Proportional to 16,840.20, 25,204.14 and 12,670.12

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Solution

The fourth proportional to 16,840.20, 25,204.14 and 12,670.12 is: 18,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.20 : 25,204.14 = 12,670.12 : x
  2. Step 2: Convert to fraction form
    16,840.20/25,204.14 = 12,670.12/x
  3. Step 3: Cross multiply
    16,840.20x = 25,204.14 × 12,670.12
  4. Step 4: Simplify right side
    16,840.20x = 319,339,478.30
  5. Step 5: Solve for x
    x = 319,339,478.30/16,840.20
  6. Step 6: Final answer
    x = 18,962.93

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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.