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Finding the Fourth Proportional to 10,373.10, 15,511.05 and 7,748.70

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Solution

The fourth proportional to 10,373.10, 15,511.05 and 7,748.70 is: 11,586.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,373.10 : 15,511.05 = 7,748.70 : x
  2. Step 2: Convert to fraction form
    10,373.10/15,511.05 = 7,748.70/x
  3. Step 3: Cross multiply
    10,373.10x = 15,511.05 × 7,748.70
  4. Step 4: Simplify right side
    10,373.10x = 120,190,473.14
  5. Step 5: Solve for x
    x = 120,190,473.14/10,373.10
  6. Step 6: Final answer
    x = 11,586.75

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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.