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Finding the Fourth Proportional to 14,894.89, 20,552.72 and 8,520.47

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Solution

The fourth proportional to 14,894.89, 20,552.72 and 8,520.47 is: 11,756.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,894.89 : 20,552.72 = 8,520.47 : x
  2. Step 2: Convert to fraction form
    14,894.89/20,552.72 = 8,520.47/x
  3. Step 3: Cross multiply
    14,894.89x = 20,552.72 × 8,520.47
  4. Step 4: Simplify right side
    14,894.89x = 175,118,813.81
  5. Step 5: Solve for x
    x = 175,118,813.81/14,894.89
  6. Step 6: Final answer
    x = 11,756.97

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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.