Home / 13,212.89-19,813.57-4,999.13

Finding the Fourth Proportional to 13,212.89, 19,813.57 and 4,999.13

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Solution

The fourth proportional to 13,212.89, 19,813.57 and 4,999.13 is: 7,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.89 : 19,813.57 = 4,999.13 : x
  2. Step 2: Convert to fraction form
    13,212.89/19,813.57 = 4,999.13/x
  3. Step 3: Cross multiply
    13,212.89x = 19,813.57 × 4,999.13
  4. Step 4: Simplify right side
    13,212.89x = 99,050,500.63
  5. Step 5: Solve for x
    x = 99,050,500.63/13,212.89
  6. Step 6: Final answer
    x = 7,496.51

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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.