Home / 14,388.30-19,855.62-8,100.63

Finding the Fourth Proportional to 14,388.30, 19,855.62 and 8,100.63

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Solution

The fourth proportional to 14,388.30, 19,855.62 and 8,100.63 is: 11,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.30 : 19,855.62 = 8,100.63 : x
  2. Step 2: Convert to fraction form
    14,388.30/19,855.62 = 8,100.63/x
  3. Step 3: Cross multiply
    14,388.30x = 19,855.62 × 8,100.63
  4. Step 4: Simplify right side
    14,388.30x = 160,843,031.04
  5. Step 5: Solve for x
    x = 160,843,031.04/14,388.30
  6. Step 6: Final answer
    x = 11,178.74

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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.