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Finding the Fourth Proportional to 16,549.79, 24,821.55 and 8,643.78

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Solution

The fourth proportional to 16,549.79, 24,821.55 and 8,643.78 is: 12,964.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,549.79 : 24,821.55 = 8,643.78 : x
  2. Step 2: Convert to fraction form
    16,549.79/24,821.55 = 8,643.78/x
  3. Step 3: Cross multiply
    16,549.79x = 24,821.55 × 8,643.78
  4. Step 4: Simplify right side
    16,549.79x = 214,552,017.46
  5. Step 5: Solve for x
    x = 214,552,017.46/16,549.79
  6. Step 6: Final answer
    x = 12,964.04

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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.