Home / 14,424.30-19,904.40-8,137.80

Finding the Fourth Proportional to 14,424.30, 19,904.40 and 8,137.80

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Solution

The fourth proportional to 14,424.30, 19,904.40 and 8,137.80 is: 11,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,424.30 : 19,904.40 = 8,137.80 : x
  2. Step 2: Convert to fraction form
    14,424.30/19,904.40 = 8,137.80/x
  3. Step 3: Cross multiply
    14,424.30x = 19,904.40 × 8,137.80
  4. Step 4: Simplify right side
    14,424.30x = 161,978,026.32
  5. Step 5: Solve for x
    x = 161,978,026.32/14,424.30
  6. Step 6: Final answer
    x = 11,229.52

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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.