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Finding the Fourth Proportional to 14,425.08, 19,890.92 and 9,379.95

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Solution

The fourth proportional to 14,425.08, 19,890.92 and 9,379.95 is: 12,934.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,425.08 : 19,890.92 = 9,379.95 : x
  2. Step 2: Convert to fraction form
    14,425.08/19,890.92 = 9,379.95/x
  3. Step 3: Cross multiply
    14,425.08x = 19,890.92 × 9,379.95
  4. Step 4: Simplify right side
    14,425.08x = 186,575,731.15
  5. Step 5: Solve for x
    x = 186,575,731.15/14,425.08
  6. Step 6: Final answer
    x = 12,934.12

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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.