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Finding the Fourth Proportional to 13,010.08, 19,518.22 and 4,245

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Solution

The fourth proportional to 13,010.08, 19,518.22 and 4,245 is: 6,368.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.08 : 19,518.22 = 4,245 : x
  2. Step 2: Convert to fraction form
    13,010.08/19,518.22 = 4,245/x
  3. Step 3: Cross multiply
    13,010.08x = 19,518.22 × 4,245
  4. Step 4: Simplify right side
    13,010.08x = 82,854,849.21
  5. Step 5: Solve for x
    x = 82,854,849.21/13,010.08
  6. Step 6: Final answer
    x = 6,368.51

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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.