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Finding the Fourth Proportional to 16,620, 22,933.80 and 9,547.44

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Solution

The fourth proportional to 16,620, 22,933.80 and 9,547.44 is: 13,174.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620 : 22,933.80 = 9,547.44 : x
  2. Step 2: Convert to fraction form
    16,620/22,933.80 = 9,547.44/x
  3. Step 3: Cross multiply
    16,620x = 22,933.80 × 9,547.44
  4. Step 4: Simplify right side
    16,620x = 218,959,079.47
  5. Step 5: Solve for x
    x = 218,959,079.47/16,620
  6. Step 6: Final answer
    x = 13,174.43

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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.