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Finding the Fourth Proportional to 19,953.50, 29,913.87 and 8,275.10

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Solution

The fourth proportional to 19,953.50, 29,913.87 and 8,275.10 is: 12,405.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,953.50 : 29,913.87 = 8,275.10 : x
  2. Step 2: Convert to fraction form
    19,953.50/29,913.87 = 8,275.10/x
  3. Step 3: Cross multiply
    19,953.50x = 29,913.87 × 8,275.10
  4. Step 4: Simplify right side
    19,953.50x = 247,540,265.64
  5. Step 5: Solve for x
    x = 247,540,265.64/19,953.50
  6. Step 6: Final answer
    x = 12,405.86

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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.