Home / 13,010.27-19,518.53-4,245.21

Finding the Fourth Proportional to 13,010.27, 19,518.53 and 4,245.21

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Solution

The fourth proportional to 13,010.27, 19,518.53 and 4,245.21 is: 6,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,010.27 : 19,518.53 = 4,245.21 : x
  2. Step 2: Convert to fraction form
    13,010.27/19,518.53 = 4,245.21/x
  3. Step 3: Cross multiply
    13,010.27x = 19,518.53 × 4,245.21
  4. Step 4: Simplify right side
    13,010.27x = 82,860,237.52
  5. Step 5: Solve for x
    x = 82,860,237.52/13,010.27
  6. Step 6: Final answer
    x = 6,368.84

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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.