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Finding the Fourth Proportional to 16,510.60, 22,780.22 and 9,790.64

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Solution

The fourth proportional to 16,510.60, 22,780.22 and 9,790.64 is: 13,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,510.60 : 22,780.22 = 9,790.64 : x
  2. Step 2: Convert to fraction form
    16,510.60/22,780.22 = 9,790.64/x
  3. Step 3: Cross multiply
    16,510.60x = 22,780.22 × 9,790.64
  4. Step 4: Simplify right side
    16,510.60x = 223,032,933.14
  5. Step 5: Solve for x
    x = 223,032,933.14/16,510.60
  6. Step 6: Final answer
    x = 13,508.47

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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.