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Finding the Fourth Proportional to 10,283.10, 15,461.10 and 8,679.30

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Solution

The fourth proportional to 10,283.10, 15,461.10 and 8,679.30 is: 13,049.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,283.10 : 15,461.10 = 8,679.30 : x
  2. Step 2: Convert to fraction form
    10,283.10/15,461.10 = 8,679.30/x
  3. Step 3: Cross multiply
    10,283.10x = 15,461.10 × 8,679.30
  4. Step 4: Simplify right side
    10,283.10x = 134,191,525.23
  5. Step 5: Solve for x
    x = 134,191,525.23/10,283.10
  6. Step 6: Final answer
    x = 13,049.72

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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.