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Finding the Fourth Proportional to 19,576.94, 29,369.88 and 8,485.48

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Solution

The fourth proportional to 19,576.94, 29,369.88 and 8,485.48 is: 12,730.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,576.94 : 29,369.88 = 8,485.48 : x
  2. Step 2: Convert to fraction form
    19,576.94/29,369.88 = 8,485.48/x
  3. Step 3: Cross multiply
    19,576.94x = 29,369.88 × 8,485.48
  4. Step 4: Simplify right side
    19,576.94x = 249,217,529.34
  5. Step 5: Solve for x
    x = 249,217,529.34/19,576.94
  6. Step 6: Final answer
    x = 12,730.16

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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.