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Finding the Fourth Proportional to 14,907.08, 20,572.86 and 8,938.62

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Solution

The fourth proportional to 14,907.08, 20,572.86 and 8,938.62 is: 12,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,907.08 : 20,572.86 = 8,938.62 : x
  2. Step 2: Convert to fraction form
    14,907.08/20,572.86 = 8,938.62/x
  3. Step 3: Cross multiply
    14,907.08x = 20,572.86 × 8,938.62
  4. Step 4: Simplify right side
    14,907.08x = 183,892,977.85
  5. Step 5: Solve for x
    x = 183,892,977.85/14,907.08
  6. Step 6: Final answer
    x = 12,335.95

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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.