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Finding the Fourth Proportional to 7,605.70, 11,403.02 and 5,134.42

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Solution

The fourth proportional to 7,605.70, 11,403.02 and 5,134.42 is: 7,697.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,605.70 : 11,403.02 = 5,134.42 : x
  2. Step 2: Convert to fraction form
    7,605.70/11,403.02 = 5,134.42/x
  3. Step 3: Cross multiply
    7,605.70x = 11,403.02 × 5,134.42
  4. Step 4: Simplify right side
    7,605.70x = 58,547,893.95
  5. Step 5: Solve for x
    x = 58,547,893.95/7,605.70
  6. Step 6: Final answer
    x = 7,697.90

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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.