Home / 12,557.64-18,823.36-4,234.80

Finding the Fourth Proportional to 12,557.64, 18,823.36 and 4,234.80

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Solution

The fourth proportional to 12,557.64, 18,823.36 and 4,234.80 is: 6,347.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.64 : 18,823.36 = 4,234.80 : x
  2. Step 2: Convert to fraction form
    12,557.64/18,823.36 = 4,234.80/x
  3. Step 3: Cross multiply
    12,557.64x = 18,823.36 × 4,234.80
  4. Step 4: Simplify right side
    12,557.64x = 79,713,138.90
  5. Step 5: Solve for x
    x = 79,713,138.90/12,557.64
  6. Step 6: Final answer
    x = 6,347.78

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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.