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Finding the Fourth Proportional to 17,760.60, 26,641.44 and 8,405.10

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Solution

The fourth proportional to 17,760.60, 26,641.44 and 8,405.10 is: 12,607.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,760.60 : 26,641.44 = 8,405.10 : x
  2. Step 2: Convert to fraction form
    17,760.60/26,641.44 = 8,405.10/x
  3. Step 3: Cross multiply
    17,760.60x = 26,641.44 × 8,405.10
  4. Step 4: Simplify right side
    17,760.60x = 223,923,967.34
  5. Step 5: Solve for x
    x = 223,923,967.34/17,760.60
  6. Step 6: Final answer
    x = 12,607.91

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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.