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Finding the Fourth Proportional to 8,913.73, 13,384.43 and 8,519.32

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Solution

The fourth proportional to 8,913.73, 13,384.43 and 8,519.32 is: 12,792.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.73 : 13,384.43 = 8,519.32 : x
  2. Step 2: Convert to fraction form
    8,913.73/13,384.43 = 8,519.32/x
  3. Step 3: Cross multiply
    8,913.73x = 13,384.43 × 8,519.32
  4. Step 4: Simplify right side
    8,913.73x = 114,026,242.19
  5. Step 5: Solve for x
    x = 114,026,242.19/8,913.73
  6. Step 6: Final answer
    x = 12,792.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.