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Finding the Fourth Proportional to 7,403, 11,109.96 and 3,507.42

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Solution

The fourth proportional to 7,403, 11,109.96 and 3,507.42 is: 5,263.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,403 : 11,109.96 = 3,507.42 : x
  2. Step 2: Convert to fraction form
    7,403/11,109.96 = 3,507.42/x
  3. Step 3: Cross multiply
    7,403x = 11,109.96 × 3,507.42
  4. Step 4: Simplify right side
    7,403x = 38,967,295.90
  5. Step 5: Solve for x
    x = 38,967,295.90/7,403
  6. Step 6: Final answer
    x = 5,263.72

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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.