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Finding the Fourth Proportional to 14,089.68, 19,446.48 and 8,125.20

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Solution

The fourth proportional to 14,089.68, 19,446.48 and 8,125.20 is: 11,214.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,089.68 : 19,446.48 = 8,125.20 : x
  2. Step 2: Convert to fraction form
    14,089.68/19,446.48 = 8,125.20/x
  3. Step 3: Cross multiply
    14,089.68x = 19,446.48 × 8,125.20
  4. Step 4: Simplify right side
    14,089.68x = 158,006,539.30
  5. Step 5: Solve for x
    x = 158,006,539.30/14,089.68
  6. Step 6: Final answer
    x = 11,214.35

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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.