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Finding the Fourth Proportional to 16,643.55, 22,968.20 and 9,089.79

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Solution

The fourth proportional to 16,643.55, 22,968.20 and 9,089.79 is: 12,543.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.55 : 22,968.20 = 9,089.79 : x
  2. Step 2: Convert to fraction form
    16,643.55/22,968.20 = 9,089.79/x
  3. Step 3: Cross multiply
    16,643.55x = 22,968.20 × 9,089.79
  4. Step 4: Simplify right side
    16,643.55x = 208,776,114.68
  5. Step 5: Solve for x
    x = 208,776,114.68/16,643.55
  6. Step 6: Final answer
    x = 12,543.97

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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.