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Finding the Fourth Proportional to 9,352.10, 12,907.50 and 8,931.71

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Solution

The fourth proportional to 9,352.10, 12,907.50 and 8,931.71 is: 12,327.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,352.10 : 12,907.50 = 8,931.71 : x
  2. Step 2: Convert to fraction form
    9,352.10/12,907.50 = 8,931.71/x
  3. Step 3: Cross multiply
    9,352.10x = 12,907.50 × 8,931.71
  4. Step 4: Simplify right side
    9,352.10x = 115,285,982.29
  5. Step 5: Solve for x
    x = 115,285,982.29/9,352.10
  6. Step 6: Final answer
    x = 12,327.29

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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.