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Finding the Fourth Proportional to 8,694.34, 13,041.47 and 7,520.83

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Solution

The fourth proportional to 8,694.34, 13,041.47 and 7,520.83 is: 11,281.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,694.34 : 13,041.47 = 7,520.83 : x
  2. Step 2: Convert to fraction form
    8,694.34/13,041.47 = 7,520.83/x
  3. Step 3: Cross multiply
    8,694.34x = 13,041.47 × 7,520.83
  4. Step 4: Simplify right side
    8,694.34x = 98,082,641.22
  5. Step 5: Solve for x
    x = 98,082,641.22/8,694.34
  6. Step 6: Final answer
    x = 11,281.21

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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.