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Finding the Fourth Proportional to 13,302.34, 19,960.48 and 8,621.15

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Solution

The fourth proportional to 13,302.34, 19,960.48 and 8,621.15 is: 12,936.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.34 : 19,960.48 = 8,621.15 : x
  2. Step 2: Convert to fraction form
    13,302.34/19,960.48 = 8,621.15/x
  3. Step 3: Cross multiply
    13,302.34x = 19,960.48 × 8,621.15
  4. Step 4: Simplify right side
    13,302.34x = 172,082,266.91
  5. Step 5: Solve for x
    x = 172,082,266.91/13,302.34
  6. Step 6: Final answer
    x = 12,936.24

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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.