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Finding the Fourth Proportional to 13,675.95, 20,550.98 and 7,440.57

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Solution

The fourth proportional to 13,675.95, 20,550.98 and 7,440.57 is: 11,181.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.95 : 20,550.98 = 7,440.57 : x
  2. Step 2: Convert to fraction form
    13,675.95/20,550.98 = 7,440.57/x
  3. Step 3: Cross multiply
    13,675.95x = 20,550.98 × 7,440.57
  4. Step 4: Simplify right side
    13,675.95x = 152,911,005.26
  5. Step 5: Solve for x
    x = 152,911,005.26/13,675.95
  6. Step 6: Final answer
    x = 11,181.02

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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.