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Finding the Fourth Proportional to 14,339.92, 19,788.98 and 8,290.03

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Solution

The fourth proportional to 14,339.92, 19,788.98 and 8,290.03 is: 11,440.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339.92 : 19,788.98 = 8,290.03 : x
  2. Step 2: Convert to fraction form
    14,339.92/19,788.98 = 8,290.03/x
  3. Step 3: Cross multiply
    14,339.92x = 19,788.98 × 8,290.03
  4. Step 4: Simplify right side
    14,339.92x = 164,051,237.87
  5. Step 5: Solve for x
    x = 164,051,237.87/14,339.92
  6. Step 6: Final answer
    x = 11,440.18

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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.