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Finding the Fourth Proportional to 14,476.87, 19,981.29 and 8,810.43

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Solution

The fourth proportional to 14,476.87, 19,981.29 and 8,810.43 is: 12,160.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,476.87 : 19,981.29 = 8,810.43 : x
  2. Step 2: Convert to fraction form
    14,476.87/19,981.29 = 8,810.43/x
  3. Step 3: Cross multiply
    14,476.87x = 19,981.29 × 8,810.43
  4. Step 4: Simplify right side
    14,476.87x = 176,043,756.85
  5. Step 5: Solve for x
    x = 176,043,756.85/14,476.87
  6. Step 6: Final answer
    x = 12,160.35

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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.